Ledboard
About the Ledboard PCB
Ledboard is an open source ESP32 PCB design by ohaut, published on GitHub. It is a 2-layer board measuring 60 × 49 mm, with 57 components from 32 distinct parts.
Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the ESP-12E, AP2210N-3.3TRG1, FAN3100TSX and NC R-78E3.3-0.5. By type, the board carries 19 resistors, 13 capacitors, 9 connectors, 6 ICs, 3 transistors and 2 diodes.
It belongs with the iot & wireless designs in this gallery.
From the project
Ray is a WiFi 3 channel led controller
base prototype IOT LED controller =================================
3 channel led controller based on the ESP12-E, this is an opensource piece of hardware meant to control 3 LED channels, and to integrate with [openhab][2] via [mqtt][2] protocol.
This module is a big version, meant to serve as SDK or handling higher currents.
[1]: http://www.openhab.org [2]: http://mqtt.org
Main components on the Ledboard
Ledboard bill of materials (BOM)
57 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3 LM1117-3.3 | SOT-223 | U1 |
| 1 | ESP-12E | ESP-12E | U2 |
| 1 | AP2210N-3.3TRG1 FAN3100TSX | SOT-23-5 | U3 |
| 2 | FAN3100TSX | SOT-23-5 | U4, U5 |
| 1 | NC R-78E3.3-0.5 | TO-220 | U6 |
| 3 | IRF540N | TO-220 | Q1, Q2, Q3 |
| 1 | BARREL_JACK | JACK_ALIM | CON1 |
| 5 | CONN_2 | bornier2 | P1, P2, P6, P7, P8 |
| 1 | CONN_01X05 | Pin_Header_Straight_1x05 | P3 |
| 1 | PIR SENSOR | Pin_Header_Straight_1x03 | P4 |
| 1 | CONN_01X03 | Pin_Header_Angled_1x03 | P5 |
| 1 | SW_PUSH | SW_PUSH_SMALL | SW1 |
| 4 | MHOLE | MHOLE_3MM | Z1, Z2, Z3, Z4 |
| 1 | 1N4148 SMD 500mA SOD-123 | SOD-323 | D1 |
| 1 | LED | LED-0603 | D4 |
| 1 | 150uF 5V | SMD Capacitor Case F | C1 |
| 3 | 4.7uF | C_0603 | C2, C11, C12 |
| 1 | 1UF 4.7uF | C_0603 | C6 |
| 2 | 1UF 100nF | C_0603 | C7, C9 |
| 1 | 10UF 100nF | C_0603 | C8 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10UF 4.7uF | C_0603 | C10 |
| 3 | 100nF | C_0603 | C13, C14, C15 |
| 1 | 150uF 25V | SMD Capacitor Case F | C16 |
| 1 | 100K 10K | R_0603 | R1 |
| 1 | 10K 100 | R_0603 | R2 |
| 1 | 4K7 15K | R_0603 | R3 |
| 1 | 100 10K | R_0603 | R4 |
| 5 | 10K | R_0603 | R5, R6, R11, R13, R14 |
| 5 | 100 | R_0603 | R7, R8, R9, R10, R15 |
| 1 | 470 | R_0603 | R12 |
| 3 | NC 160 | R_0603 | R16, R17, R18 |
| 1 | 1K | R_0603 | R19 |
Ledboard design files
The KiCad project lives in the ohaut/ray repository on GitHub; these links point at the commit this page was built from.
Ledboard: common questions
What microcontroller does the Ledboard use?
The Ledboard is built around the ESP32-C3, from the ESP32 family.
How big is the Ledboard PCB?
The Ledboard measures 60 × 49 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ledboard?
57 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ledboard design files?
From the ohaut/ray repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Ledboard design in my own project?
The repository has no license, so all rights stay with ohaut. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Ledboard 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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