https://github.com/xlfe/32u
Small ESP32 board $20AUD, LiPo, USB, hand solderable w/ u.FL antenna
https://github.com/xlfe/32u
esp32 ftdi kicad lipo lipo-charger low-power pcb rtc
Last synced: 26 days ago
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Small ESP32 board $20AUD, LiPo, USB, hand solderable w/ u.FL antenna
- Host: GitHub
- URL: https://github.com/xlfe/32u
- Owner: xlfe
- License: gpl-3.0
- Created: 2018-08-18T02:00:27.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2018-08-18T02:15:14.000Z (almost 8 years ago)
- Last Synced: 2025-12-26T19:35:32.045Z (6 months ago)
- Topics: esp32, ftdi, kicad, lipo, lipo-charger, low-power, pcb, rtc
- Homepage:
- Size: 670 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# 32u
Goals
* Use ESP32-WROOM-32U (IPEX/U.FL module)
* AU $20 per module (ie BOM + PCB under AU $20 in Q=10 from Mouser.com / JLCPCB.com)
* No parts smaller than 0603 (Hand soldering!)
* FTDI USB <-> UART
* Battery PST PH 2.0 Connector and Charger
* Auto-program over USB
* Connect VBAT to IO via voltage divider
* Include 32k Crystal for ULP / RTC clock
* Small board - 45mm x 29mm (approx ~2 square inches)
* Breakout as many IO as possible