HardLabs

RLM

GryphonRacingFSAE·GRC22·Remote-Logging-Module/hardware/RLM.kicad_pcb

RLM PCB layout, top view — open source ESP32 board by GryphonRacingFSAE

About the RLM PCB

RLM is an open source ESP32 PCB design by GryphonRacingFSAE, published on GitHub. It is a 2-layer board measuring 88.9 × 59.1 mm, with 16 components from 12 distinct parts.

Its main chip is the ESP32, from the ESP32 family. Other key parts include the AP1117-33 and MCP2562-E-SN. By type, the board carries 6 capacitors, 4 resistors, 2 ICs and 1 diode.

It belongs with the rf & radio and sensors designs in this gallery.

From the project

Repository for all firmware and related software on our 2022-2024 car

An onboard data logging system for our cars, using radio transmission for remote data monitoring.

- Visual Studio Code - C/C++ Extension - PlatformIO IDE - Foxglove Studio

Plug in both modules and check platformio.ini to ensure the correct ports are selected:

NOTE: port names may differ between operating systems

PLATFORMIO > PROJECT TASKS > transmitter > Upload and Monitor

Main components on the RLM

AP1117-33MCP2562-E-SN

RLM bill of materials (BOM)

16 components, 12 distinct parts.

QtyPartRefs
1
AP1117-33
U3
1
MCP2562-E-SN
U7
1
ESP32
ESP32
1
GY-521
GY-521
1
NRF24L01
NRF24L01
1
LED
D1
2
10u
C1, C3
2
1u
C2, C4
2
100nF
C5, C6
1
1k
R1
1
120
R2
2
10k
R3, R4

RLM design files

The KiCad project lives in the GryphonRacingFSAE/GRC22 repository on GitHub; these links point at the commit this page was built from.

RLM: common questions

What microcontroller does the RLM use?

The RLM is built around the ESP32, from the ESP32 family.

How big is the RLM PCB?

The RLM measures 88.9 × 59.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RLM?

16 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the RLM design files?

From the GryphonRacingFSAE/GRC22 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RLM design in my own project?

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

Can I test firmware for the RLM 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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