https://github.com/redetection/qc3-trigger
Easy power source for your equipment and hardware projects
https://github.com/redetection/qc3-trigger
Last synced: about 1 month ago
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Easy power source for your equipment and hardware projects
- Host: GitHub
- URL: https://github.com/redetection/qc3-trigger
- Owner: ReDetection
- Created: 2019-05-10T08:15:07.000Z (almost 6 years ago)
- Default Branch: master
- Last Pushed: 2019-05-10T08:37:11.000Z (almost 6 years ago)
- Last Synced: 2025-01-25T10:43:13.357Z (3 months ago)
- Language: C++
- Size: 156 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Digispark-based quick charge trigger
Recently I got a TS100 soldering iron. Since it is quite portable (it is only pencil sized), I was searching for the portable way to power it up. Before, I used some laptop 19V power supply, but it wasn't very handy to carry many power adapters for every kind of mobile equipment I have. So I end up building a small board to control it.
As a control unit I chose a Digispark – it is quite compact, have a standard 2.54mm pin spacing (so perfboard compatible), and can be easily programmed by connecting it directly to the USB. Here is a trick: you need to get rid of 6 seconds of delay of digispark, but I already have it done – I updated digispark bootloader to only enter programming mode on external reset (connect pin 5 to ground). After enter programming mode you have standard 6 seconds delay to connect the micronucleus programmer software. To do that, change [line 110 of the micronucleus configuration](https://github.com/micronucleus/micronucleus/blob/1f1bf6955c34cb209e9d0d2c1539ec449dbcbfdd/firmware/configuration/t85_default/bootloaderconfig.h#L110) from `ENTRY_ALWAYS` to `ENTRY_EXT_RESET`:
```
#define ENTRYMODE ENTRY_EXT_RESET
```
There is a button to change voltages: cycle between 5, 12, 16, 20, 9, 3.3
### Pictures
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| Board | Iron |
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## Dependencies ##
* [QC3Control](https://github.com/vdeconinck/QC3Control)
## License ##
MIT