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• 4ch RX board.

  Saul • 04/28/2023 at 15:17 • 0 comments

  If I use the 4 analog lines for soft servos an 8CH rx could work.

  still need to look over the design a bit, can you find the vias I forgot to remove?

  
  

• Update. It was the caps!

  Saul • 04/19/2023 at 10:45 • 0 comments

  Replaced the advil caps with a couple electrolytic capacitors of the correct value...

  It Works!

  • Hooked to a single AA + 5V boost module
  • 260 - 300 mah from the AA = about 10 Hours per cell
    • Oled at Full brighness
  • Tx speed is up. 15Hz at idle (no conection)
  • 70 Hz! Connected! (with no serial output.) did I count wrong in the code?

  Will figure out a basic case and add Trim adjustments for the joysticks.

  3/4 axis are off by +3...

  Having multiple remotes should really speed up my other projects.

  Now I can have more customized code on both rx/tx.

• This was supposed to be the easy part.

  Saul • 04/10/2023 at 09:06 • 0 comments

  The new pcb was easy to solder in about 20 minutes, expecting it to just work I added the oled code and got the analog values displaying...but the wireless signal won't connect.

  of course first I just had the wrong pin set on one...but the other... idk

  Even without making a connection the speed is off. the only difference being the oled which updated only 2/3 times a second.

  1. The nano remote is hitting about 15-16 hz.
  2. The micro remote is hitting 8-9 hz.

  Looking closer I think it could be a simple passive component. 

  • The mcp1700 3.3v reg needs 2 1 uF capacitors. Micro Farad. (ran out of these)
  • atmega328pu Oscillator needs 2 22 pF capacitors (tons of these...)
  • I thought i was only off by a bit then I remember the advil caps were the wrong prefix.

  I was off by 500,000x.

  at least I hope this is the problem...because idk...

  but to make it more strange rx board with the same caps seems to work fine with the test remote...

• PCB = Prototype circuit board.

  Saul • 04/09/2023 at 00:35 • 0 comments

  Other project rely on this one so I need it in a better working condition. its also 10000x easier to make multiples...

  The nano-rf combo was supposed to make things easier..but they never really caught on and now their hard to find...

  1. For the test remote A0/A1 had an interference problem. so its a working mess...
  2. V1 has more parts:

  • analog joysticks solder on directly 
  • breakout the unused pins for trim/button/pot.
  • I2c output for oled to have a menu/remote calibration.

  I'll design a full case when I decide on the extra i/o bits. i think a switch and/or button will give enough options with the oled and the js switches also.

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