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| | '''Setting up the DS3231 RTC''' | | '''Setting up the DS3231 RTC''' |
| − | DS3231 RTC Datasheet: https://datasheets.maximintegrated.com/en/ds/DS3231.pdf
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| − | Insert a coin cell battery into DS3231. Either CR2032 or LI2032 coin cell battery will work.
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| − | Insert '''DS3231 module''' into the '''Power Logger PCB''' at J5.
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| − | To Set the date and time use the follow program and paste in the Arduino IDE.<br>
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| − | //This code can be found here:https://github.com/rodan/ds3231
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| − | #include <Wire.h>
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| − | #include <ds3231.h>
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| − | struct ts t;
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| − | void setup() {
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| − | Serial.begin(9600);
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| − | Wire.begin();
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| − | DS3231_init(DS3231_CONTROL_INTCN);
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| − | /*----------------------------------------------------------------------------
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| − | In order to synchronise your clock module, insert timetable values below !
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| − | ----------------------------------------------------------------------------*/
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| − | t.hour=20;
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| − | t.min=40;
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| − | t.sec=0;
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| − | t.mday=11;
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| − | t.mon=4;
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| − | t.year=2021;
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| − | DS3231_set(t); //Comment out after setting RTC with time & date
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| − | }
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| − |
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| − | void loop() {
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| − | DS3231_get(&t);
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| − | Serial.print("Date : ");
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| − | Serial.print(t.mon);
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| − | Serial.print("/");
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| − | Serial.print(t.mday);
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| − | Serial.print("/");
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| − | Serial.print(t.year);
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| − | Serial.print("\t Hour : ");
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| − | Serial.print(t.hour);
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| − | Serial.print(":");
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| − | Serial.println(t.min);
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| − | Serial.print(":");
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| − | Serial.println(t.sec);
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| − | delay(60000);
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| − | }
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| − | void print2digits(int number){
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| − | if (number >= 0 && number < 10) {
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| − | Serial.write ('0');
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| − | }
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| − | Serial.print(number);
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| − | }
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| − |
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| − | Connect the '''USBTinyISP''' to the '''AVR-ISP-6 pin header J7''' on the '''Power Fail Logger PCB''' .<br>
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| − | In the Arduino IDE click on '''Tools''' Tab - Select '''Programmer''' then select '''USBTinyISP'''.<br>
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| − | In the Arduino IDE click on '''Sketch''' Tab - Select '''Upload Using Programmer'''<br>
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| − | Program should download. <br>
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| − |
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| | ---- | | ---- |
| | ==[[ Power Fail Logger by Microrusty ]]== | | ==[[ Power Fail Logger by Microrusty ]]== |
Revision as of 20:27, 25 May 2021
Setting up the ATMega328 chip
Plug the USBTiny Programmer into the AVR-ISP 6 pin header J7.
Using AVRDUDE Validate the USBTiny is communicating with the Power Fail Module Microcontroller
avrdude -c usbtiny -p m328p -v
The Microcontroller is set to 1HMz and needs to be changed to 16 MHz Default
Using AVRDude enter the follow command to set the fuse bits on the Microcontroller.
avrdude -p m328p -c usbtiny -v -U lfuse:w:0xFF:m -U hfuse:w:0xDE:m -U efuse:w:0xFF:m
Make sure it matches these settings:
avrdude: safemode: hfuse reads as DE
avrdude: safemode: efuse reads as FF
avrdude: safemode: Fuses OK (E:FF, H:DE, L:FF)
avrdude done. Thank you.
For more information about using AVRDude refer back to this link
==AVRDUDE Class==
Next step Setting up the DS3231 RTC
Setting up the DS3231 RTC
