please take EXTRA PRECAUTION while doing soldering works. Note:This board comes with loose headers, so soldering is required. Lithium Ion Rechargeable Battery and Charger.
I can’t seem to replace the bootloader it ships with.īut the issue with low power is that V-USB as implemented requires a pull-up resistor and that will forever cause a low drain regardless of the AVR sleep mode… see this link for R3 1500 Ohm pull-up. I’d like to replace it with a basic UNO bootloader but that leads me back to the question above. I speculate it is due to the extensive bootloader they have written to allow USB downloads. I wanted to use the Pro Trinket as the chip for the project but it’s minimal current draw is around 2mA, even after disabling the power LED. I set this up on a breadboard and can get the system to hibernate at ~. I have a low current draw project that needs to run on batteries for a long period of time (> 3 months). I’ve created breadboard ATMega328Ps using Nick’s board_detector and board_programmer sketches in the past. I can't seem to replace the bootloader it ships with. I'd like to replace it with a basic UNO bootloader but that leads me back to the question above. I wanted to use the Pro Trinket as the chip for the project but it's minimal current draw is around 2mA, even after disabling the power LED. I've created breadboard ATMega328Ps using Nick's board_detector and board_programmer sketches in the past.
When I try to program a UNO bootloader on the board, it won't enter programming mode. Here is a partial output from the board_detector sketch, reading from a Pro Trinket 3.3V :Ĭompiled on at 21:52:25 with Arduino IDE 10601.Īttempting to enter ICSP programming mode. Can you tell me if the Adafruit Pro Trinket bootloader is incompatible with Nick Gammon's board_programmer sketch?
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