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Electronic Throttle Controller

Nomalah·Budget-Racing-Electronics·Electronic Throttle Controller/Hardware/Electronic Throttle Controller.kicad_pcb

Electronic Throttle Controller PCB layout, top view — open source ESP32 board by Nomalah

About the Electronic Throttle Controller PCB

Electronic Throttle Controller is an open source ESP32 PCB design by Nomalah, published on GitHub. It is a 2-layer board measuring 27.8 × 69.7 mm, with 38 components from 18 distinct parts.

Its main chip is the ESP32-C3-WROOM-02U, from the ESP32 family. Other key parts include the MCP2551-I-SN, AMS1117-3.3, L7805 and ADS1115IDGS. By type, the board carries 16 resistors, 9 capacitors, 7 ICs, 4 connectors, 1 transistor and 1 diode.

From the project

All electronics for the budget racing vehicle

Main components on the Electronic Throttle Controller

ESP32-C3-WROOM-02UMCP2551-I-SNAMS1117-3.3L7805ADS1115IDGS

Electronic Throttle Controller bill of materials (BOM)

38 components, 18 distinct parts.

QtyPartRefs
1
ESP32-C3-WROOM-02U
U1
1
MCP2551-I-SN
U2
1
AMS1117-3.3
U3
1
L7805
U4
3
ADS1115IDGS
U5, U6, U7
1
ECH8697R
Q1
1
USB_B
J1
1
ETC SIG
J2
1
ETC CAN
J3
1
ETC PWR
J4
1
ESD2CAN24-Q1
D1
6
150nF
C1, C2, C3, C4, C5, C6
3
100nF
C7, C8, C9
1
120
R1
2
100
R3, R6
5
10K
R4, R5, R15, R16, R17
6
12K
R7, R8, R9, R10, R11, R12
2
4.7K
R13, R14

Electronic Throttle Controller design files

The KiCad project lives in the Nomalah/Budget-Racing-Electronics repository on GitHub; these links point at the commit this page was built from.

Electronic Throttle Controller: common questions

What microcontroller does the Electronic Throttle Controller use?

The Electronic Throttle Controller is built around the ESP32-C3-WROOM-02U, from the ESP32 family.

How big is the Electronic Throttle Controller PCB?

The Electronic Throttle Controller measures 27.8 × 69.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Electronic Throttle Controller?

38 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Electronic Throttle Controller design files?

From the Nomalah/Budget-Racing-Electronics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Electronic Throttle Controller design in my own project?

The repository has no license, so all rights stay with Nomalah. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Electronic Throttle Controller 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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