2 layers37 × 19 mm
Passive rpi hub75-adapter
hzeller/rpi-rgb-led-matrix
Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
2 parts4.4kGPL-2.0
2 layers
turbo levo battery clone
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 2
- Nets
- 5
- Pads
- 11
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 Apr 2021
- Updated
- 31 Aug 2025
Overview
Latch is an open-source printed circuit board by scipioni, from the scipioni/levopen-battery repository on GitHub. It is a 2-layer board with 2 parts on 5 nets.
Its parts include 1 IC and 1 connector. It belongs with the power boards of this library.
README
README.mdlevopen-battery
turbo levo open battery with:
- custom latch power circuit
- firmware on esp32 that take care of motor via canbus
Prereq
on arch linux
yay -S platformio-core-udev platformio-coreCompilation and Flashing
To compile and flash the firmware to an ESP32 (esp32doit-devkit-v1), you can use the provided Makefile commands:
# Compile the project
make compile
# Flash the firmware to the ESP32
make flash
# Compile and flash in one command
make compile-and-flash
# Clean build files
make clean
# Monitor serial output
make monitorCalibration
change BATTERY_K in bike.h with:
- measured mV on battery
- mean_pin printed on serial monitor
#define BATTERY_K 40600 / 195Parts
2| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | Conn_01x01_Female | Connector_Pin:Pin_D1.0mm_L10.0mm | J1 |
| 1 | LM2575-5.0BT | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
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Questions
What parts does the Latch use?
2 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Latch KiCad files?
From the scipioni/levopen-battery repository on GitHub, at the commit this page was made from: the board is latch-dev/latch/latch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Latch design in my own project?
Its repository states no licence, so its author keeps all rights: ask scipioni before reusing the design.