The ESP32 PinPulse base seen from above at an angle: a black board with four corner mounting holes, four SOIC-14 chips down the middle, a column of small LEDs outside each edge connector, two 2.54 mm strips along each long edge with the pin names printed beside them, and a white fifteen-way ribbon socket at the far end.

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ESP32 PinPulse Base, 24 GPIO LEDs

Four bases for the 38-pin Lonely Binary ESP32. Which pins each one brings out, which way round the board goes, the fifteen-way display port they all share, and the twenty-four LEDs on the PinPulse.

LEDs: 24one per GPIO
GPIOs out: 24
Display port: 15way FPC

Start here · 04 The PinPulse base The reference

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The whole handbook10 articles · 45 min 3D model (GLB)GLB · 10.5 MB CAD model (STEP)ZIP · 5.3 MB Pinout and specsThe pin table, and the questions people ask first

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ESP32 PinPulse Base, 24 GPIO LEDs

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ESP32 PinPulse Base, 24 GPIO LEDs

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Point a phone camera at the code and this page opens there. It is the same address as the one printed on your box, so it is also what to show someone you are passing the board to.