UsbPrg is a small clone of USBasp which contains only a 6 Pin header which is compiant with 6-pin ISP header.


Backside Frontside On Power Programmer Cable SPI Writing

Lessons learned

  • Always use 18-22pF on Quarz
  • Tripple Check your Board before milling...
  • Remove old connections when changing schematics
  • attiny45 are weird - the fuses have to be specific


Sensor v3

The new Sensor v3 is perfectly fitting into the programmer. Because the SPI port is between rfm and attiny, i had to solder a small connector cable. See some pictures:

The PCB Connectors assembled V2 vs V3 In Programmer Numbered Devices