adafruit on Nostr: A level shifter just for pixels ðâĻðĄ After noodling with some WS2811s and ...
Published at
2024-10-03 10:10:48Event JSON
{
"id": "1ab201c557f438073f2f3db09d264ac1bed44822036d1832b5d04677b09481c0",
"pubkey": "c164633a8802f15a960409c6a2889f36b63295baf91bdad19dfdaf1db4cef46a",
"created_at": 1727950248,
"kind": 1,
"tags": [
[
"proxy",
"https://mastodon.cloud/users/adafruit/statuses/113242947479447442",
"activitypub"
]
],
"content": "A level shifter just for pixels ðâĻðĄ\n\nAfter noodling with some WS2811s and TM1814, we really wish we had a board that would level-shift our NeoPixel signals from 3V to 5V or give us an inverted data line. So, we designed this board. it uses an AP3602 (https://www.digikey.com/en/products/detail/diodes-incorporated/AP3602AKTR-G1/5305823) charge pump to give a clean 5V reference voltage from 3~5V. a 74HCT2G34 (https://www.digikey.com/en/products/detail/nexperia-usa-inc/74HCT2G34GW-125/1300830) shifts two signals - we call them DAT and CLK, but it could be anything really - to 5V from 1.8~5V.\n\nhttps://media.mastodon.cloud/media_attachments/files/113/242/945/952/682/084/original/bbd079006bcf8f1a.png",
"sig": "bf0cd454887bcfe02468d4c778e9f5033a1dc417e540d4db16c4e66347fca857aec0438f6f98ef4445215ec8b3b273146b86b86fe4f77c5e43278ee7fa50f0d5"
}