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[[Internal EEPROM]]

* U1: ATtiny45 or ATtiny85 (pre-programmed, internal oscillator @ 1MHz) ...y and fit it in a small plastic enclosure. The enclosure I chose had small internal rails, between which a circuit board can be held. I was hoping that the enc

[[File:0145 EEPROM programmer schematic.png]] The Arduino based EEPROM programmer, using two 74HC595 serial shift registers:

...es. Press and hold the button for about 5 seconds to store the new ID into eeprom. ...are currently does not detect an out of range value and may cause the read-eeprom-value to fail. Whether this affects further operation of the board is unkno

...ve to work on this part at a later stage. There is a possibility to use an internal 1.1V reference voltage. This is a feature inside the ATtiny84. All that's r ...up the t84 at intervals, but it turns out these intervals are depending on internal clock speed and without a crystal they can be very inaccurate. I decided no