pictographer
Well-known member
Just finished my Morse code voltage monitor! It's intended to help a friend maintain an amateur radio repeater by letting him know the state of the radio's battery.
Documentation, photos, schematics, and code are available at http://pictographer.com/didah
I'm very interested in feedback. I'm new to circuit design and somewhat new to embedded development. The ADC gave me fits, but eventually with some serious filtering I was able to get a stable reading from it. I think there might be some code worth stealing if anyone needs to create command line interfaces or work with Morse code. I'd like to know how to make the circuit (and everything else) better.
Eventually, I'd like to incorporate ideas/code from the projects here to build data loggers, especially improving the ADC and reducing the power consumption. I'd like to have a circuit board made next time.
I'm very grateful for the T3, Paul's help, and this community.
![voltage_monitor_action.jpg voltage_monitor_action.jpg](https://forum.pjrc.com/data/attachments/0/807-1f382f51ef391f9a277228b611039bca.jpg)
![voltage_monitor_interior.jpg voltage_monitor_interior.jpg](https://forum.pjrc.com/data/attachments/0/808-7b03944e828e0056d825dfe8f866b280.jpg)
Documentation, photos, schematics, and code are available at http://pictographer.com/didah
I'm very interested in feedback. I'm new to circuit design and somewhat new to embedded development. The ADC gave me fits, but eventually with some serious filtering I was able to get a stable reading from it. I think there might be some code worth stealing if anyone needs to create command line interfaces or work with Morse code. I'd like to know how to make the circuit (and everything else) better.
Eventually, I'd like to incorporate ideas/code from the projects here to build data loggers, especially improving the ADC and reducing the power consumption. I'd like to have a circuit board made next time.
I'm very grateful for the T3, Paul's help, and this community.
![voltage_monitor_action.jpg voltage_monitor_action.jpg](https://forum.pjrc.com/data/attachments/0/807-1f382f51ef391f9a277228b611039bca.jpg)
![voltage_monitor_interior.jpg voltage_monitor_interior.jpg](https://forum.pjrc.com/data/attachments/0/808-7b03944e828e0056d825dfe8f866b280.jpg)