This is a wearable wristwatch data display combining an OLED display, 3v 8MHz Arduino Pro Mini, 240mAh LiPo battery and nRF24L01+ SMD tranceiver. To be used in conjunction with my MPPT solar charge controller project.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Could not see nrf24l01 😎, what's the type of display, model?
Have you thought about using a Particle Core or Electron? Then you can access your data anywhere in the world! The core uses WiFi and the Electron uses 2G/3G!
Julian –
A little off topic. I watched and followed your videos on using the OLED. And I got a couple and got them running too. But in some of your videos, the yellow is at the bottom instead of the top. It looks like you turned the OLED upside down and flipped the text. But I can't figure out how to do it. I've googled it and, well I'm asking you now. What's the trick ?
i wanna know . the difference between using an ATmega328 IC for project and using an arduino for project. i kind of like to have good knowledge of things i am using and dont like any readymade things to make my work easier coz that wont give me a good knowledge of what i am using. someone somewhere has hidden the complexity (which otherwise have given me a good understanding) to make things easier…….. sO should i go for any arduino like things like raspberry pie and all….. what difference will it make…… and can it still have a good understanding of things if i use any ready made microcontroller board
I can't even get my pc to connect to my dvr, ,,love your videos, don't understand a word you said, but can appreciate the knowledge you have. Can't wait to see final product.
love watching your projects!
I became a Pi man last year (May) – I have a few youtube vids myself.
I'm now moving to Arduino nano/uno projects. I have an electronics career background but your vids are extremely useful to me to hit the ground running.
Just wanted to say thanks! and keep them coming… very inspiring!
I'm planning on making something similar with that screen, but an arduino nano clone. I was thinking just to use a normal 9v battery, would you recommend lipo for that instead though? presumably 5v. I have an imax lipo charger but it's so complicated to use.. scary!
Why the resistor soldered on the board? Its a replacement for the smd original one? Thanks!
Wonderful intro to DIY wearable watch. Did you get a chance to see how long the battery last?
That is a great OLED display, do you have a separate video on it or could tell me where to get it / what to search for? (I tried searching your channel, but couldn't find a dedicated video.)
This video is a few months old now, but I notice you had an 808 keychain camera in one of your videos. It has (mine did at least) an even thinner 170mAh battery you could use. I found that my pro mini would also run from a 3v CR2032 button battery (only tried with the 'blink led' sketch though 😉
Yay. I'm Julian too. Julians rule.
Did you manage to perform any testing with the nRF24L01+ SMD module? If so I'd be interested to know what the range is like.
Just seen a watch called a pebble and wondered if it might save you reinventing the wheel maybe? Hope this is of interest. Looking forward to your next post.
why don't you use a bluetooth instead of nrf24l01 transceiver? it could be fun!
Thank you