Edge detector
About the Edge detector PCB
Edge detector is an open source ESP32 PCB design by itstoomuchbutter, published on GitHub. It is a 2-layer board measuring 43 × 20 mm, with 40 components from 17 distinct parts.
Its main chip is the C2838502, from the ESP32 family. Other key parts include the AP2112K-3.3, C544396, HX710C and C424093. By type, the board carries 19 resistors, 13 capacitors, 6 ICs and 2 diodes.
Main components on the Edge detector
Edge detector bill of materials (BOM)
40 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AP2112K-3.3 | SOT-23-5 | U1 |
| 2 | C544396 | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U2, U6 |
| 1 | HX710C | SOP-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | C424093 | SOT-23-5 | U4 |
| 1 | C2838502 | ESP32-C3-MINI-1 | U5 |
| 1 | C2286 | LED_0603_1608Metric | D1 |
| 1 | C134406 | SOT-363_SC-70-6 | D6 |
| 4 | 10uF | C_0402_1005Metric | C1, C2, C3, C11 |
| 1 | 1uF | C_0402_1005Metric | C4 |
| 5 | 0.1uF | C_0402_1005Metric | C5, C9, C10, C14, C15 |
| 1 | 1nF | C_0402_1005Metric | C6 |
| 2 | 22pF | C_0402_1005Metric | C7, C8 |
| 4 | 4k7 | R_0402_1005Metric | R1, R13, R14, R15 |
| 1 | 470 | R_0402_1005Metric | R2 |
| 3 | 10k | R_0402_1005Metric | R3, R16, R17 |
| 6 | 100 | R_0402_1005Metric | R5, R7, R9, R10, R20, R21 |
| 5 | 100k | R_0402_1005Metric | R6, R8, R11, R12, R18 |
Edge detector design files
The KiCad project lives in the itstoomuchbutter/edge_detector repository on GitHub; these links point at the commit this page was built from.
- Layoutedge_detector.kicad_pcb
- Schematicedge_detector.kicad_sch
Edge detector: common questions
What microcontroller does the Edge detector use?
The Edge detector is built around the C2838502, from the ESP32 family.
How big is the Edge detector PCB?
The Edge detector measures 43 × 20 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Edge detector?
40 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Edge detector design files?
From the itstoomuchbutter/edge_detector repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Edge detector design in my own project?
The repository has no license, so all rights stay with itstoomuchbutter. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Edge detector without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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