2021-09-11 18:58:49 +03:00
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# arduino_rw1990
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Read and flash RW1990 keys using arduino.
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RW1990 aka RW-1990. Most likely RW-1990.1, ТМ-08, ТМ-08v2 will be working.
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### It should be something about 'PCB'
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You will need:
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* Resistor 2.2k
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* Arduino Nano. Or not Nano, Uno is also good. Or you can pick some Arduino-compatible board.
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* Wires x3
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Long story short: pull PIN 10 over capacitor to VCC. Plug this pin to the center of the iButton key. Key 'borders' should be connected to the ground.
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Just take a look on [what_is_it_should_be_look_like.jpg](what_is_it_should_be_look_like.jpg)
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### HOWTO
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To ***read key*** just flash snipped as is.
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To ***write key*** you need do next steps:
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1. Set `key_to_write` to key you want to write.
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2. Find in code '// UNCOMMENT THIS SECTION FOR FLASHING KEY' section and uncomment this section.
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3. Flash. Check. Get satisfied.
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### Example
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2021-09-11 19:28:00 +03:00
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Read:
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2021-09-11 18:58:49 +03:00
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```
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2021-09-11 19:28:00 +03:00
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.........
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[1:F0:88:12:1:0:0:2E]
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2021-09-11 18:58:49 +03:00
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2021-09-11 19:28:00 +03:00
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[1:F0:88:12:1:0:0:2E]
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[1:F0:88:12:1:0:0:2E]
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[1:F0:88:12:1:0:0:2E]
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..................................
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```
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Write:
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```
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..
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[1:F0:88:12:1:0:0:2E]
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++++++++
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[1:5F:69:B:1:0:0:EA]
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[1:5F:69:B:1:0:0:EA]
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programmed to KEY requested
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[1:5F:69:B:1:0:0:EA]
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programmed to KEY requested.....
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2021-09-11 18:58:49 +03:00
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```
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### References:
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Uses some code, ideas, information, inspiration taken from:
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* https://github.com/AlexMalov/EasyKeyDublicator/
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* https://habr.com/ru/post/237487/
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### License
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Since I didn't find any license info in projects used please consider this as WTFPL app.
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