Gerbers, BOM, and Schematics for Open UpCell [1S]
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Updated
Jan 19, 2023
Gerbers, BOM, and Schematics for Open UpCell [1S]
E-Paper Display based ultra efficient mini personal weather station
Pointless Button Hardware Version 2
ESP32 WROVER development board with environmental sensors, tiny OLED display, 18650 battery and SD card slot
Ebike stuff
DIY pwrbank with ETA9742 IC, single Detachable 18650 Li-ion. Does not support PD (PD may damage a single battery) but supports 3A Icharge
ESP32 WROVER board with 18650 battery and environmental sensors
Low-cost DIY DC UPS system using 18650 batteries and ESP8266. Features real-time monitoring via Tasmota and Home Assistant integration (MQTT) for routers, mini-PCs, and smart home devices
(鉄): A E-ink Display that displays custom information, driven by a Raspberry Pi and powered by two 18650 rechargable batteries.
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