EPISODE · Apr 10, 2022 · 21 MIN
The Desk of Ladyada - Mailbag & Spaceball 2003!
from Adafruit Industries · host Adafruit Industries
Mr Ladyada gave me this funky 3D mouse to play with today - it has a DE-9 plus power supply cable on it, so with a little googling and pySerial hacking we were able to get button and motion data out of it. Next up, we want to design a RS-232 Featherwing to make it easy to attach to these sorts of devices and send/receive data. Even though RS-232 is kinda old at this point, we still see a lot of devices that show up with one of these 'universal' ports! We'll also check out a cute Arduino compatible we got in the mail. The Great Search - 3V TTL to RS-232 converter https://www.digikey.com/short/5jrm33hr To get this nifty Spaceball user interface working, we're using a USB to RS-232 adapter cable. But for the next step in this project we'll want to use a Feather board. In order to connect to the DE-9 port safely, we need to convert the TTL serial on a Feather (0-3V logic) to +-6~10V inverted logic. Thankfully, there are chips that make it easy - they even have built in switched-cap converters to create the +6V and -6V logic rails! Let's find one that we can use to make an adapter Featherwing with. #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
What this episode covers
Mr Ladyada gave me this funky 3D mouse to play with today - it has a DE-9 plus power supply cable on it, so with a little googling and pySerial hacking we were able to get button and motion data out of it. Next up, we want to design a RS-232 Featherwing to make it easy to attach to these sorts of devices and send/receive data. Even though RS-232 is kinda old at this point, we still see a lot of devices that show up with one of these 'universal' ports! We'll also check out a cute Arduino compatible we got in the mail. The Great Search - 3V TTL to RS-232 converter https://www.digikey.com/short/5jrm33hr To get this nifty Spaceball user interface working, we're using a USB to RS-232 adapter cable. But for the next step in this project we'll want to use a Feather board. In order to connect to the DE-9 port safely, we need to convert the TTL serial on a Feather (0-3V logic) to +-6~10V inverted logic. Thankfully, there are chips that make it easy - they even have built in switched-cap converters to create the +6V and -6V logic rails! Let's find one that we can use to make an adapter Featherwing with. #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
NOW PLAYING
The Desk of Ladyada - Mailbag & Spaceball 2003!
No transcript for this episode yet
Similar Episodes
Apr 21, 2026 ·73m
Apr 18, 2026 ·14m
Apr 18, 2026 ·95m
Apr 15, 2026 ·55m
Apr 13, 2026 ·68m
Apr 11, 2026 ·59m