{"title":"Components","description":null,"products":[{"product_id":"2-pack-4x4-matrix-keypad-i2c-adapter","title":"2-Pack 4x4 Matrix Keypad with I2C Adapter","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 GPIO PINS DOWN TO 2\u003c\/strong\u003e SIX PINS BACK ON EVERY BUILD: A 4x4 matrix keypad wired directly takes eight GPIO pins. Through the adapter it needs two — SDA and SCL. The six pins you get back stay free for displays, SD cards, servos and sensors, and other I2C devices can share the same two wires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRIGID HOUSING, INDIVIDUAL KEYS\u003c\/strong\u003e BUILT FOR REPEATED PRESSES: Molded ABS frame with 16 separately raised keys on a PCB — 0-9, A-D, star and hash. 160-180g actuation force and under 100 ohm contact resistance give a firm, repeatable press rather than a soft membrane feel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO JUMPER WIRES BETWEEN THEM\u003c\/strong\u003e FACTORY PRE-SOLDERED HEADER: The 2.54mm 8-pin header arrives already soldered to the keypad and plugs straight into the adapter socket. Four wires — GND, VCC, SDA, SCL — go to your board. Runs on 3.3V or 5V logic, so no level shifter is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTWO IN THE PACK\u003c\/strong\u003e ONE TO BUILD WITH, ONE IN RESERVE: Two complete keypad-and-adapter pairs, so a second project or a spare is already covered. Both adapters ship at address 0x20 and work independently on separate boards straight away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOPTIONAL: BOTH ON ONE BUS\u003c\/strong\u003e A0\/A1\/A2 ADDRESS PADS: To run both keypads on a single board, bridge the A0 solder pad on one adapter to move it to 0x21. This step needs a soldering iron. The pads cover eight addresses, 0x20 to 0x27. Compatible with Arduino IDE, ESP32-S3 and Raspberry Pi boards; the open-source I2CKeyPad library is in the Arduino Library Manager.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Devices\u003c\/th\u003e\n\u003ctd\u003eArduino Uno, Arduino Mega, Arduino Nano, ESP32-S3 development boards, ESP32, ESP8266, Raspberry Pi (4B, 3B+, Zero, Pico), STM32 boards, MicroPython-compatible boards, I2C-enabled microcontrollers, embedded systems and IoT development platforms\nArduino Uno, Arduino Mega, Arduino Nano, ESP32-S3 development boards, ESP32, ESP8266, Raspberry Pi (4B, 3B+, Zero, Pico), STM32 boards, MicroPython-compatible boards, I2C-enabled microcontrollers, embedded sy… See more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnectivity Technology\u003c\/th\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKeyboard Description\u003c\/th\u003e\n\u003ctd\u003eMembrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Uses For Product\u003c\/th\u003e\n\u003ctd\u003eArduino projects, ESP32-S3 development, Raspberry Pi interfaces, IoT automation projects, smart home control panels, DIY electronics prototyping, embedded systems development, robotics control input, microcontroller-based interfaces, sensor control systems, breadboard prototyping setups, Home security systems, electronic door locks, keypad entry systems, alarm control panels, access control systems, password input devices, PIN-based access systems, digital safes, vending machines, attendance systems, electronic voting systems, Industrial control panels, automation interfaces, menu navigation systems, interactive user input systems, custom control consoles, data entry panels, user authentication systems, prototype hardware interfaces, lab testing setups, engineering training projects, STEM education kits, classroom electronics learning, maker projects, hobby electronics projects\nArduino projects, ESP32-S3 development, Raspberry Pi interfaces, IoT automation projects, smart home control panels, DIY electronics prototyping, embedded systems development, robotics control input, microcontroller-bas… See more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecial Feature\u003c\/th\u003e\n\u003ctd\u003eBuilt-in I2C interface simplifies wiring and reduces pin usage to just SDA and SCL. Includes a dual keypad set (2-pack), ideal for multi-device or expandable projects., Compact and lightweight design with breadboard-compatible headers for easy soldering and quick setup. Supports both 3.3V and 5V systems with stable, noise-resistant signal performance. Plug-and-play compatibility with widely available libraries, perfect for Arduino, ESP32, Raspberry Pi, and other IoT or embedded applications., Designed to save GPIO pins while supporting multiple devices on the same I2C bus. Durable membrane keys provide long lifespan with responsive tactile feedback and low contact resistance (\u0026lt;100Ω).\nBuilt-in I2C interface simplifies wiring and reduces pin usage to just SDA and SCL. Includes a dual keypad set (2-pack), ideal for multi-device or expandable projects., Compact and lightweight design with breadboard-compatible head… See more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eDual 4x4 I2C Matrix Keypad (Heavy Duty, 2-Pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eFlexible Membrane (PET) with PCB and Electronic Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Components\u003c\/th\u003e\n\u003ctd\u003e2x Lonely Binary Heavy Duty 4x4 Matrix Keypad, 2x Lonely Binary I2C Adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154499229,"sku":"B0G6YRQJ5F","price":27.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/51vWdpxj65L.jpg?v=1788828913"},{"product_id":"27-pack-logic-level-converter-2-4-6-channel-3-3v-5v","title":"27-Pack Logic Level Converter, 2\/4\/6 Channel 3.3V-5V","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e27-PIECE ASSORTED CHANNEL KIT\u003c\/strong\u003e Includes 18x 2-channel, 6x 4-channel, and 3x 6-channel logic level converter modules for various interfacing needs in IoT and microcontroller applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBI-DIRECTIONAL LOGIC SHIFTING\u003c\/strong\u003e Converts signals between 3.3V and 5V levels for mixed-voltage electronics projects. Automatic direction sensing — no manual configuration needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePROTOCOL COMPATIBILITY\u003c\/strong\u003e Supports I2C, SPI, and UART protocols — for connecting sensors, displays, LED strips, and other peripherals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBREADBOARD-FRIENDLY DESIGN\u003c\/strong\u003e Compact modules with standard 2.54mm pin spacing for prototyping and integration into custom circuits. Works with Arduino, ESP32, Raspberry Pi, and similar platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile IoT Integration\u003c\/strong\u003e Compatible with popular development boards and IDEs like those for ESP32, Raspberry Pi, and similar platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue-Packed Kit\u003c\/strong\u003e 27 pieces provide ample supply for multiple projects, workshops, or educational purposes without frequent reordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe and Efficient Operation\u003c\/strong\u003e Automatic direction sensing eliminates manual configuration; operates without external power sources beyond connected devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003e27pcs Logic Level Converter Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Components\u003c\/th\u003e\n\u003ctd\u003e18x 2-channel, 6x 4-channel, and 3x 6-channel Logic Level Converter modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecial Feature\u003c\/th\u003e\n\u003ctd\u003eBi-directional, automatic direction sensing, multi-channel (2\/4\/6), 3.3V to 5V shifting, I2C SPI UART support, breadboard-friendly 2.54mm\nBi-directional, automatic direction sensing, multi-channel (2\/4\/6), 3.3V to 5V shifting, I2C SPI UART support, breadboard-friendly 2.54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnectivity Technology\u003c\/th\u003e\n\u003ctd\u003ePin Headers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWireless Communication Standard\u003c\/th\u003e\n\u003ctd\u003eInfrared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardware Interface\u003c\/th\u003e\n\u003ctd\u003e2.5mm Audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154531997,"sku":"B0FFMLDYNY","price":13.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/5113fyS3t_L.jpg?v=1788828914"},{"product_id":"5-set-i2c-4x4-matrix-membrane-keypad","title":"5-Set I2C 4x4 Matrix Membrane Keypad","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-SET SOFT KEYPAD KIT (5 KEYPADS + 5 I2C ADAPTERS)\u003c\/strong\u003e Includes 5 flexible soft 4x4 matrix keypads (16 keys each), 5 I2C adapters to simplify connections, and a storage container — suitable for multiple projects or backups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOFT MEMBRANE KEYPADS WITH EASY MOUNTING\u003c\/strong\u003e Each keypad has a flexible design with double-sided adhesive tape on the back for attachment to project boxes, desks, or enclosures — for custom interfaces in robotics, security systems, or prototypes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPIO-SAVING I2C ADAPTERS\u003c\/strong\u003e The included adapters enable I2C communication using just 2 GPIO pins (SDA and SCL) instead of the traditional 8, freeing up pins on your microcontroller. Compatible with Arduino, Raspberry Pi, ESP32, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIDE COMPATIBILITY\u003c\/strong\u003e Keypads and adapters support 3.3V to 5V operation for a wide range of MCUs. Easy to program with libraries like Keypad_I2C for quick setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVERSATILE APPLICATIONS\u003c\/strong\u003e Use these 4x4 keypads for numeric entry, menu navigation, or custom controls in IoT devices, home automation, smart locks, and educational projects. Soft, responsive keys provide tactile feedback in a compact form.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Devices\u003c\/th\u003e\n\u003ctd\u003eArduino, Arduino UNO, ESP32, ESP32-S3, Raspberry Pi, Raspberry Pi Pico, ESP8266, STM32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnectivity Technology\u003c\/th\u003e\n\u003ctd\u003eI2C Digital 4×4 Matrix Keypad Interface GPIO (via I2C adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKeyboard Description\u003c\/th\u003e\n\u003ctd\u003eNumeric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Uses For Product\u003c\/th\u003e\n\u003ctd\u003eDIY electronics prototyping, IoT control panels, Keypad input for microcontroller projects, access control systems, robotics interfaces\nDIY electronics prototyping, IoT control panels, Keypad input for microcontroller projects, access control systems, robotics interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecial Feature\u003c\/th\u003e\n\u003ctd\u003eBuilt-in adhesive backing for easy mounting on panels and enclosures, I2C interface, GPIO-saving (2-pin), 4x4 16-key matrix, soft membrane, adhesive backing, PCF8574 adapter included, 3.3V\/5V compatible, Multiple keypads supported on a shared I2C bus using PCF8574-based adapters, Soft membrane 4×4 matrix keypad with 16 clearly labeled keys, Wide voltage support from 3.3V to 5V for broad microcontroller compatibility\nBuilt-in adhesive backing for easy mounting on panels and enclosures, I2C interface, GPIO-saving (2-pin), 4x4 16-key matrix, soft membrane, adhesive backing, PCF8574 adapter included, 3.3V\/5V compatible, Multiple keypads s… See more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003e5 Set (Keypads 4x4 16 keys +I2C Adapters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eFlexible membrane keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Components\u003c\/th\u003e\n\u003ctd\u003e5 × 4x4 soft membrane matrix keypads, 5 × I2C adapter modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003e4x4 Matrix Keypad Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154597533,"sku":"B0G2KZW8KX","price":27.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/51b0VPQEdqL.jpg?v=1788828915"},{"product_id":"12-pack-ttp223-capacitive-touch-sensor","title":"12-Pack TTP223 Capacitive Touch Sensor","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePACK OF 12 MODULES\u003c\/strong\u003e 12 TTP223 touch sensor modules for prototyping, repairs, or multiple projects — suitable for hobbyists, makers, and educators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGOLD EDITION ENIG FINISH\u003c\/strong\u003e Immersion gold (ENIG) plating for good conductivity and corrosion resistance. Lead-free, RoHS-compliant manufacturing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIDE VOLTAGE COMPATIBILITY\u003c\/strong\u003e Supports both 3.3V and 5V MCU systems — works with Arduino, Raspberry Pi Pico, ESP32, ESP32-S3, and other microcontroller projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAPACITIVE TOUCH SENSITIVITY\u003c\/strong\u003e Single-channel TTP223 IC for touch detection — replaces mechanical buttons in IoT devices, smart switches, lamps, and interactive electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEASY INTEGRATION\u003c\/strong\u003e Compact size with clear pinouts (VCC, GND, I\/O) and low power consumption for DIY applications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154728605,"sku":"B0GJD8R67C","price":17.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/51FNpvcDKZL.jpg?v=1788828919"},{"product_id":"12-pack-usb-c-pd-trigger-100w-decoy-5-20v","title":"12-Pack USB-C PD Trigger, 100W Decoy 5-20V","description":"\u003cul\u003e\n\u003cli\u003e✅ 【VOLTAGE SELECTION VIA DIP SWITCH】Set output voltage (5V, 9V, 12V, 15V, or 20V) using the built-in DIP switch — no soldering or resistors needed for adjustments.\u003c\/li\u003e\n\u003cli\u003e✅ 【UP TO 100W (20V\/5A MAX)】PD 2.0\/3.0 and QC protocol compatibility for powering laptops, routers, monitors, LED strips, CCTV cameras, speakers, and other DC devices from USB-C PD chargers or power banks.\u003c\/li\u003e\n\u003cli\u003e✅ 【SCREW TERMINALS + BREADBOARD PINS】Screw terminals for tool-free wire connections, plus pin headers for direct insertion into standard breadboards — suitable for Arduino, Raspberry Pi, prototyping, and permanent installs.\u003c\/li\u003e\n\u003cli\u003e✅ 【12-PACK WITH PROTECTIONS】Twelve Type-C PD decoy boards with over-current and anti-static protection. Works with most USB-C PD power supplies — ensure your charger supports the selected voltage.\u003c\/li\u003e\n\u003cli\u003e✅ 【FIXED-VOLTAGE PD DECOY TRIGGER】Forces USB-C PD chargers to output the selected fixed voltage reliably — for DIY power conversion, device repair, testing, and embedded projects. (Fixed output, not dynamic negotiation.)\u003c\/li\u003e\n\u003cli\u003e✅【 Reliable \u0026amp; Safe】Built-in protections including over-current and anti-static features; works with most USB-C PD power supplies (note: ensure your charger supports the selected voltage)\u003c\/li\u003e\n\u003cli\u003e✅ 【Easy to Use 】Simply plug into a PD-compatible USB-C charger\/power bank, set the DIP switches per the clear diagram, connect your wires\/terminals, and get instant fixed-voltage output\u003c\/li\u003e\n\u003cli\u003e✅ 【True PD Decoy Trigger Module 】Stable Fixed Voltage Output Forces USB-C PD chargers to output selected voltage reliably—ideal for DIY power conversion and testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLonely Binary 12-Pack USB-C PD Trigger Module with DIP Switch\u003c\/p\u003e\n\u003cp\u003eThe Lonely Binary USB-C PD Trigger Module 12-Pack converts USB-C PD power into fixed voltage outputs for makers, engineers, and DIY projects.\u003c\/p\u003e\n\u003cp\u003eVoltage Selection via DIP Switch\u003c\/p\u003e\n\u003cp\u003eEach module has an onboard DIP switch to select the output voltage: 5V, 9V, 12V, 15V, or 20V. No soldering or resistor configuration required.\u003c\/p\u003e\n\u003cp\u003eUp to 100W USB-C PD Output\u003c\/p\u003e\n\u003cp\u003eSupports up to 100W (20V\/5A max) with compatible USB-C PD chargers or power banks, for powering laptops, routers, LED strips, monitors, speakers, and other DC devices.\u003c\/p\u003e\n\u003cp\u003eScrew Terminals\u003c\/p\u003e\n\u003cp\u003eBuilt-in screw terminals provide secure wire connections without soldering — suitable for prototyping, testing, and permanent installations.\u003c\/p\u003e\n\u003cp\u003eBreadboard-Friendly Design\u003c\/p\u003e\n\u003cp\u003eCompact module with standard pin layout for integration into breadboards and DIY electronics projects.\u003c\/p\u003e\n\u003cp\u003eApplications\u003c\/p\u003e\n\u003cp\u003eUSB-C PD power conversion projects\u003c\/p\u003e\n\u003cp\u003eDIY power supply modules\u003c\/p\u003e\n\u003cp\u003eEmbedded systems and microcontroller projects\u003c\/p\u003e\n\u003cp\u003eLED lighting and display systems\u003c\/p\u003e\n\u003cp\u003eDevice repair, testing, and modification\u003c\/p\u003e\n\u003cp\u003eWhat's in the Box\u003c\/p\u003e\n\u003cp\u003e12 × USB-C PD Trigger Modules with DIP Switch and Screw Terminals\u003c\/p\u003e\n\u003cp\u003e1 × 40-Pin Breakaway Straight Male Pin Headers\u003c\/p\u003e\n\u003cp\u003e1 × 40-Pin Breakaway Right-Angle Male Pin Headers\u003c\/p\u003e\n\u003cp\u003eImportant Notes\u003c\/p\u003e\n\u003cp\u003eEnsure your USB-C power source supports the selected voltage output\u003c\/p\u003e\n\u003cp\u003eMaximum output depends on your charger capability (up to 100W)\u003c\/p\u003e\n\u003cp\u003eDesigned for fixed voltage output — not for dynamic negotiation\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Voltage\u003c\/th\u003e\n\u003ctd\u003e20 volts_of_direct_current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlug Format\u003c\/th\u003e\n\u003ctd\u003eType C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Items\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eItem Highlight\u003c\/th\u003e\n\u003ctd\u003ePD 3.0\/QC, fixed 5V\/9V\/12V\/15V\/20V via DIP switch; screw terminals; breadboard pins; for Arduino, ESP32; laptop, router, LED\nPD 3.0\/QC, fixed 5V\/9V\/12V\/15V\/20V via DIP switch; screw terminals; breadboard pins; for Arduino, ESP32; laptop, router, LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154761373,"sku":"B0GTTTGJNX","price":27.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/51hhsp-9V0L.jpg?v=1788828920"},{"product_id":"24-pack-ams1117-ldo-regulator-module-3-3v-adjustable","title":"24-Pack AMS1117 LDO Regulator Module, 3.3V + Adjustable","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-PIECE KIT (18x FIXED + 6x ADJUSTABLE)\u003c\/strong\u003e Includes 18 AMS1117-3.3V fixed modules (with LED indicator) and 6 AMS1117-ADJ adjustable modules — for voltage regulation, converting higher inputs to stable 3.3V or custom outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLOW DROPOUT DESIGN\u003c\/strong\u003e LDO regulators dissipate excess voltage as heat — suitable for light-duty use where input is higher than output (e.g., 4.3V–12V for 3.3V output). Not recommended for high-current\/heavy loads, as more voltage drop or current produces more heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eADJUSTABLE OUTPUT \u0026amp; STABILITY\u003c\/strong\u003e ADJ modules feature a rear potentiometer for tunable output (1.25V and up). Once set with the included screwdriver, output stays consistent even if input varies (as long as input exceeds output by ~1V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBREADBOARD-FRIENDLY\u003c\/strong\u003e Compact modules (20mm x 11mm x 5mm) with 3 pins (GND, OUT, VIN). 3.3V versions include an LED for power status — for Arduino, Raspberry Pi, sensors, and prototyping without soldering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIDE COMPATIBILITY\u003c\/strong\u003e Works with microcontrollers such as Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and various 3.3V\/5V sensors and modules. Includes a storage container, mini screwdriver, and male header pins.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLonely Binary 24pcs AMS1117 LDO Regulator Kit (18x Fixed 3.3V + 6x Adjustable)\u003c\/p\u003e\n\u003cp\u003eThe Lonely Binary AMS1117 LDO Regulator Kit is a 24-pack for voltage conversion in breadboards, microcontrollers, and DIY electronics. The set includes 18 fixed 3.3V modules and 6 adjustable modules for handling voltage mismatches.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cp\u003eAMS1117-3.3V Modules: Deliver a stable 3.3V output from higher inputs, with three pins (GND, OUT, VIN) and a built-in LED to indicate operation. For powering 3.3V devices like ESP32 or sensors from 5V sources.\u003c\/p\u003e\n\u003cp\u003eAMS1117-ADJ Modules: Adjustable output via a rear potentiometer, from about 1.25V upward. The output remains fixed once set, regardless of input fluctuations (as long as input exceeds output by ~1V).\u003c\/p\u003e\n\u003cp\u003eLDO Technology: As Low Dropout Regulators, these convert excess voltage to heat for stable operation. Higher voltage drops or currents generate more heat — avoid continuous heavy usage (e.g., over 800mA) without heatsinks to prevent thermal issues. Input must always be higher than output.\u003c\/p\u003e\n\u003cp\u003eBreadboard-Ready: Compact PCBs with included male pins for quick setup. For Arduino, Raspberry Pi, ESP32-S3, and custom circuits.\u003c\/p\u003e\n\u003cp\u003ePackage Includes\u003c\/p\u003e\n\u003cp\u003e18 × AMS1117-3.3V Regulator Modules (with LED)\u003c\/p\u003e\n\u003cp\u003e6 × AMS1117-ADJ Regulator Modules (with Potentiometer)\u003c\/p\u003e\n\u003cp\u003e1 × Storage Container\u003c\/p\u003e\n\u003cp\u003e1 × Mini Screwdriver for pot adjustments\u003c\/p\u003e\n\u003cp\u003eMale Header Pins\u003c\/p\u003e\n\u003cp\u003eDesigned in Australia\u003c\/p\u003e\n\u003cp\u003eLonely Binary is an independent Australian brand focused on open-source maker hardware.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e4.5 volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Voltage\u003c\/th\u003e\n\u003ctd\u003e3.3 volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Items\u003c\/th\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154859677,"sku":"B0FVX6GJCJ","price":17.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/5133ZM64T8L.jpg?v=1788828922"},{"product_id":"3-pack-ads1115-16-bit-adc-i2c-module","title":"3-Pack ADS1115 16-Bit ADC I2C Module","description":"\u003cul\u003e\n\u003cli\u003e✅ 【TRUE 16-BIT PRECISION WITH PROGRAMMABLE GAIN】Texas Instruments ADS1115 delivers 16-bit resolution across 4 single-ended or 2 differential analog channels. Six software-selectable PGA input ranges from ±0.256V to ±6.144V resolve voltage changes down to 7.8 microvolts per LSB — suitable for thermocouples, strain gauges, pH probes, and load cells.\u003c\/li\u003e\n\u003cli\u003e✅ 【GOLD EDITION FINISH (ENIG, LEAD-FREE)】Each module features ENIG (Electroless Nickel Immersion Gold) plating for good solderability and oxidation resistance. Lead-free RoHS-compliant construction.\u003c\/li\u003e\n\u003cli\u003e✅ 【I2C INTERFACE — CHAIN UP TO 4 MODULES (16 CHANNELS)】Standard I2C communication uses 2 wires (SDA\/SCL) plus power and ground. Four selectable addresses (0x48–0x4B) via the ADDR pin allow up to 4 ADS1115 modules on the same bus for up to 16 analog channels — suitable for multi-sensor data loggers and monitoring projects.\u003c\/li\u003e\n\u003cli\u003e✅ 【3.3V \u0026amp; 5V COMPATIBILITY】Operates on 2.0V to 5.5V supply with logic tolerant of both 3.3V and 5V signals — no level shifter required. Works with Arduino UNO\/Mega\/Nano, ESP32, ESP32-S3, ESP8266, Raspberry Pi, Raspberry Pi Pico, STM32, BBC Micro:bit, and other I2C microcontrollers. Library support for Arduino IDE, MicroPython, and CircuitPython.\u003c\/li\u003e\n\u003cli\u003e✅【3-PACK, AUSTRALIAN-DESIGNED】Three Gold Edition modules with pre-soldered headers ready for breadboard or jumper-wire use. Suitable for multi-sensor projects, IoT monitoring nodes, classroom labs, or keeping spares on hand. Lonely Binary is an Australian-designed, open-source-friendly brand making components for makers, students, and educators.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884154990749,"sku":"B0GJCSJVH9","price":17.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/51d4M_t6psL.jpg?v=1788828925"},{"product_id":"5-pack-hc-sr04-ultrasonic-sensor-i2c-uart","title":"5-Pack HC-SR04 Ultrasonic Sensor, I2C \/ UART","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 SELECTABLE MODES — I2C, UART, 1-WIRE \u0026amp; GPIO\u003c\/strong\u003e Choose from four communication modes on a single sensor: I2C and UART for multi-sensor buses with minimal pins, 1-Wire for ultra-low pin count, and standard GPIO (Trig\/Echo) for direct drop-in use. Adapt the same sensor to robotics, automation, and multi-node setups without rewiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGOLD IMMERSION PLATING\u003c\/strong\u003e Gold-plated PCB for good corrosion resistance and conductivity. Built by Lonely Binary for distance measurement in maker and prototyping projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBRICK-COMPATIBLE DESIGN\u003c\/strong\u003e Integrate with standard building bricks using the included assorted brick and join adapters — add sensing to custom models such as cars, planes, or interactive structures without soldering or modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-PACK BUNDLE WITH ACCESSORIES\u003c\/strong\u003e Includes five Gold Edition ultrasonic sensors, one set of assorted brick and join adapters, and a protective storage container to keep components organized — suitable for hobbyists, educators, or multiple prototypes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIDE MCU COMPATIBILITY\u003c\/strong\u003e Works with 3.3V to 5V microcontrollers including Arduino, Raspberry Pi, Raspberry Pi Pico, Nano, and ESP32. 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Lead-free, RoHS-compliant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWIDE COMPATIBILITY (3.3V–5V)\u003c\/strong\u003e Works with microcontrollers operating on 3.3V to 5V (up to 6V for DHT22), using single-wire digital communication — no extra components needed for most projects like smart home automation or data logging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHT22 vs DHT11 SPECS\u003c\/strong\u003e DHT22: -40°C to 80°C, 0–100% RH, ±0.5°C\/±2% accuracy for precise needs. DHT11: 0–50°C, 20–80% RH, ±2°C\/±5% accuracy for basic monitoring. 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Translates signals between voltage levels from 1.2V–3.6V (A-side) to 1.65V–5.5V (B-side), with data rates up to 100 Mbps for high-speed applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCHOOSE THE RIGHT VARIANT\u003c\/strong\u003e TXB0108 suits push-pull GPIO and digital signals like SPI; TXS0108 supports open-drain protocols like I2C (with pull-up resistors). Pick based on your protocol.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOMPACT \u0026amp; EASY TO USE\u003c\/strong\u003e Breakout boards with headers for breadboard prototyping. 8 independent channels per module for multi-signal conversion without additional components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTEXAS INSTRUMENTS CHIPS\u003c\/strong\u003e Built with Texas Instruments TXB0108\/TXS0108 ICs for low power consumption and ESD protection. Kit includes multiples of each type for backups or multiple projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLonely Binary 6-Pack TXB0108 \u0026amp; TXS0108 8-Channel Bidirectional Level Shifter Kit\u003c\/p\u003e\n\u003cp\u003eThis 6-pack of 8-channel bidirectional voltage level shifters bridges different logic voltages. The kit includes 3 TXB0108 modules and 3 TXS0108 modules, giving flexibility to choose the right shifter for your application.\u003c\/p\u003e\n\u003cp\u003eTXB0108 vs TXS0108\u003c\/p\u003e\n\u003cp\u003eTXB0108: Optimized for push-pull applications, providing bidirectional drive for signal translation in standard digital interfaces like SPI. Suited for active high\/low driving, not for open-drain setups.\u003c\/p\u003e\n\u003cp\u003eTXS0108: Supports both push-pull and open-drain modes, suitable for protocols like I2C that rely on pull-up resistors. Features internal accelerators for faster edge rates.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003c\/p\u003e\n\u003cp\u003e8 independent channels per module for multi-signal handling\u003c\/p\u003e\n\u003cp\u003eVoltage range: 1.2V to 3.6V on one side, 1.65V to 5.5V on the other\u003c\/p\u003e\n\u003cp\u003eAuto-direction sensing — no extra control logic needed\u003c\/p\u003e\n\u003cp\u003eCompact PCB with pin headers for breadboards or custom circuits\u003c\/p\u003e\n\u003cp\u003eLow quiescent current and ESD tolerance\u003c\/p\u003e\n\u003cp\u003eFor interfacing a 3.3V MCU with 5V sensors, building IoT devices, or prototyping with microcontrollers, this kit addresses voltage incompatibility. Includes multiples of each type for experimentation or repairs.\u003c\/p\u003e\n\u003cp\u003eWhat's Included\u003c\/p\u003e\n\u003cp\u003e3 × TXB0108 8-Channel Bidirectional Voltage Level Shifter\u003c\/p\u003e\n\u003cp\u003e3 × TXS0108 8-Channel Bidirectional Voltage Level Shifter\u003c\/p\u003e\n\u003cp\u003e1 × Storage Container\u003c\/p\u003e\n\u003cp\u003eDesigned in Australia\u003c\/p\u003e\n\u003cp\u003eLonely Binary is an independent Australian brand focused on open-source maker hardware.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLONELY BINARY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Supply Voltage\u003c\/th\u003e\n\u003ctd\u003e5.5 volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Supply Voltage\u003c\/th\u003e\n\u003ctd\u003e1.2 volts_of_direct_current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Pins\u003c\/th\u003e\n\u003ctd\u003e96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Channels\u003c\/th\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Lonely Binary","offers":[{"title":"Default Title","offer_id":48884155449501,"sku":"B0FVWZSK39","price":17.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/9994\/7908\/files\/514cCXXTbYL.jpg?v=1788828937"}],"url":"https:\/\/lonelybinary.com\/en-us\/collections\/components\/amazon-import.oembed","provider":"Lonely Binary","version":"1.0","type":"link"}