Home › Expansion › ESP32 PinPulse Shield, 24 GPIO LEDs

ESP32 PinPulse Shield seen from above: a column of LEDs beside each pin strip and four inverter chips down the middle

ESP32 PinPulse Shield swung 30 degrees away on its left edge

Underside of the ESP32 PinPulse Shield with the display connector pin mapping

Description

A base for the ESP32 with an LED on every GPIO, so you can see each pin go high or low without a meter. The board plugs into the two black sockets in the middle and every pin comes out to a 2.54 mm header with its own LED beside it. Four 74HC04 inverters drive the LEDs, so they cost your pins nothing.

Highlights

24 GPIO LEDs. One LED per GPIO, driven through SN74HC04 inverters so the LEDs do not load the pins.
Pin strips on both sides. Four 15-way 2.54 mm headers with the pin names printed beside them.
Display port. A 15-way FPC connector links Lonely Binary TFT, E-Ink and touch displays with one ribbon cable (displays sold separately).
Four mounting holes for a case or a baseplate.

In the box

1 × ESP32 PinPulse Shield, headers fitted

The ESP32 board is not included.

Specifications

LEDs: 24 × 0603 red, 5.1 kΩ resistors
Drivers: 4 × SN74HC04 hex inverter
Edge pins: 4 × 15-way strips, 2.54 mm pitch
ESP32 sockets: 2 × 19-way, 2.54 mm
Display connector: 15-way FPC, 1.0 mm pitch

Smooth operation across the board

Nice three pack. Used all three and they work well.

Wrong part sent

The wrong part was sent, 4MB version sent, I ordered 16MB. I emailed the company last Wednesday July 1 and have heard nothing.

DS18B20 temp sensor monitor with ESP32-S3

Appriciate the quality and service from Lonely Binary. Second time purchasing from them and wont be the last. As a beginner in electronics world, their website has helped me a lot. Not many places you can find the required information, explanation and the materials you need at one spot. Keep up the good work lads.

Screw Terminal Boards

I started by emailing the company wasking for the standalone screw terminal boards for the ESP32-C3 . I really hope you start stocking them stateside, but thank you for shipping them so quickly and listing them on your site as well.