RevK :verified_r: on Nostr: Been meaning to finish this for a while. Small #PCB, #ESP32S3, all GPIOs on pin pads. ...
Been meaning to finish this for a while.
Small #PCB, #ESP32S3, all GPIOs on pin pads. USB-C, and battery charger circuit, ADC for battery level, and works a 3.7V LiPo.
Uses TPS22916CNYFPR to manage power, so when off it is almost zero current from battery. CPU can then make it stay on.
Also has two of them to control power to two switch output power pins, as well as two fixed output pins.
And a WS2812 LED as well.
I have not ordered any, but let me know if interested. All on my #codeberg.
Published at
2026-08-04 11:33:07 UTCEvent JSON
{
"id": "fdfe299adfae30a08fd1f3b723d6090b9df86766a14a7f6bbf0d36f4e753ac06",
"pubkey": "40b6857dd3fb332a7bfd54c316d90262e917ca4f9a8d7b86b96642cc146d33e2",
"created_at": 1785843187,
"kind": 1,
"tags": [
[
"t",
"PCB"
],
[
"t",
"esp32s3"
],
[
"t",
"codeberg"
],
[
"imeta",
"url https://toot.me.uk/system/media_attachments/files/117/037/005/924/393/614/original/1bd58b33ffc519bb.png",
"m image/png",
"dim 2796x2509",
"blurhash ULDl=#xt4o4n~ps:D*IT9G%NWAWAD%%MRjbJ"
],
[
"proxy",
"https://toot.me.uk/users/revk/statuses/117037019106860659",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "Been meaning to finish this for a while.\n\nSmall #PCB, #ESP32S3, all GPIOs on pin pads. USB-C, and battery charger circuit, ADC for battery level, and works a 3.7V LiPo.\n\nUses TPS22916CNYFPR to manage power, so when off it is almost zero current from battery. CPU can then make it stay on.\n\nAlso has two of them to control power to two switch output power pins, as well as two fixed output pins.\n\nAnd a WS2812 LED as well.\n\nI have not ordered any, but let me know if interested. All on my #codeberg.\n\nhttps://toot.me.uk/system/media_attachments/files/117/037/005/924/393/614/original/1bd58b33ffc519bb.png",
"sig": "03aad61751539a393a39c76d4d2da2a432a773c81f021fd532bd799e0e538e3b976378171a963b698c2826ead95f7b4b1555e0dce5e348dafbfc8fec17084bcc"
}
