Programming fine and running fine with USB power / plugin. But when using the VIN with 9V battery, it does not run correctly. Power LEDs seem to work when powered up, but the processor is not running the SKETCH. Any recommendations on this would be appreciated.
Not a novice with this stuff.
Do not use 9v batteries. Most of them can't produce the current, required for your device.
Use 4x AA (or AAA) batteries instead
Strange that you think attiny88 has a Vin pin. Look, no Vin pin:
Also the max voltage is 5.5V, so if you connect 9V to any pin, the chip will be damaged:
Operating Voltage +1.8V to +5.5V
OP is not talking about Attiny88 mcu, but about such a board
The OP just said ATTINY 85, nothing about development boards/modules.
How do you know?
The pinout you showed is for the IC, not the board. The board has a voltage regulator with a vin pin. (also, the board has 30 pins while the ic only has 28.)
Yes, I guessed that @ort11 might have been using some board containing an attiny88, but they did not say that, they said only that they were using an attiny88, which is the name of a chip made by atmel.
@ort11 assumed that forum members were able to use their psychic powers to figure out what board was being used. Fortunately...
...a forum member with those psychic powers is now available to read @ort11's mind and help them. Thank goodness for that!
I’m struggling to get my ATTiny88 boards working. Could you tell me which of the scores of online installation instructions you followed please?
I was having problems, too. I had to change the USB cable, then my board was recognized. I’m using the the ATtinycore.
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