No serial on ATiny841 2.0.0 Codeline
ahshah opened this issue · 10 comments
ahshah commented
Description: I can flash updates via the IDE using optiboot, however I can't get anything to print to the serial monitor.
Bootloader UART Settings: TX: PA1 RX: PA2
Board settings:
Heres the code:
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_PIN as an output.
Serial.begin(115200);
}
// the loop function runs over and over again forever
void loop() {
Serial.println("on");
delay(1000); // wait for a second
Serial.println("off");
delay(1000); // wait for a second
}
Here's the hook up, please note vcc and gnd connections are below the breadboard adapting board. The FTDI is a sparkfun model.
ahshah commented
Codeline is currently on d670622: Correct issues with avrdude,conf.m make wiring readable
ahshah commented
The power and gnd rails read 3.3 v , and you can see 3.3v is soldered in the on the sparkfun FTDI controller