The board was made just for a bit of fun really and as an alternative to the MAX7219 boards. It uses 2 74hc595 ICs, one as current source and one as sink. It uses about 24ma at peak so well within the chips limitations. It is multiplexed with row scanning. Code and EagleCad files - http://www.davidjwatts.com/youtube/8x8matrix.zip It turns out that Likes actually help the channel, so if you want please click the thumbs up. google.com/+DavidWatts twitter.com/mrdavidjwatts davidjwatts.com ... https://www.youtube.com/watch?v=6dUr7Oi0HO4

So it seems my teflon tube is all backed up and no amount of force could break it free. New parts on the way. I probably didn't need to take the entire assembly to bits but it was nice to see how it all went together and it will make putting it all back more interesting.... It turns out that 'Likes' and 'Shares' actually help the channel so, if you want to, please click the thumbs up or share the video. If you want to get in contact Twitter is probably the best way @mrdavidjwatts http://www.davidjwatts.com ... https://www.youtube.com/watch?v=DaxblXg-eIw

*** 5v in the diagram should be 3v3, sorry. DO NOT CONNECT IT TO 5V. Bit of a stupid mistake when drawing on the board *** I have had these NRF24L01+ (NRF24L01) modules kicking around for a while now but my first attempt to use them was unsuccessful. They are notoriously difficult for the beginner to get running but not in all cases. After many internet searches I realise a lot of people had trouble setting them up. So I thought I would give them another go and share my experience. My code if it helps is a modified version of the getting started example from the Manicbug RF24 Library, you will need it if you want to use and pick apart my terrible code. My program sends Char arrays from string data and a float. I am using the Mega as a primary transmitter and the DigiX as the primary receiver but they do communicate both ways. http://www.davidjwatts.com/youtube/NRF24L01_code.zip It turns out that 'Likes' and 'Shares' actually help the channel so, if you want to, please click the thumbs up or share the video. I don't have a Patreon or a donate thingy, I get by fine. That said, if you are mega rich and fancy donating something I would find useful they feel free to check out my Amazon wishlist (No pressure) - http://www.amazon.co.uk/registry/wishlist/29JZFQUC2NZ8V If you want to get in contact Twitter is probably the best way @mrdavidjwatts http://www.davidjwatts.com ... https://www.youtube.com/watch?v=dVyJNqTlL44

It's just one thing after another tbh: PWM85 Adam Welch - https://admw.uk/pwm85 Unexpected Maker Badge - https://www.tindie.com/products/seonr/unexpected-maker-badge-2019-kit/ AA Battery Holder - http://s.click.aliexpress.com/e/kPkHOdP2 8-bit light board - http://s.click.aliexpress.com/e/3t82ONlQ HPDL-1414 - http://s.click.aliexpress.com/e/MOuv3xU8 PAM8301 - http://s.click.aliexpress.com/e/ep23n1hA Micro SD Breakout - https://www.ebay.co.uk/itm/New-Blue-Silver-Micro-SD-TF-Card-Breakout-Transfer-Board-Module-MB102-DIY-DE/232039147845 PDLC Smart Glass - https://www.ebay.co.uk/itm/200x300mm-Smart-Film-Starter-Electrochromic-PDLC-Switchable-Glass-Film/173843101050 It turns out that 'Likes' and 'Shares' actually help the channel so, if you want to, please click the thumbs up or share the video. I don't have a Patreon or a regular donate thingy, I get by fine. That said, if you are mega rich and fancy buying me a coffee, breadboards or CMOS ICs - https://paypal.me/DavidWattsYT I put lots of my favourite products and stuff that helps me make video up on this Amazon page - https://www.amazon.com/shop/davidwatts It is one of those affiliate things. If you want to get in contact Twitter is probably the best way @mrdavidjwatts http://www.davidjwatts.com ... https://www.youtube.com/watch?v=34P3ZiHlylo