Difference between revisions of "Door control system/Logbook"
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Line 8: | Line 8: | ||
* Arduino resets on serial open() from bifferboard | * Arduino resets on serial open() from bifferboard | ||
* Arduino flashes digital outputs high on reset | * Arduino flashes digital outputs high on reset | ||
− | * Digital output flashing high triggers door open | + | * Digital output flashing high triggers door open (this seems to be getting worse over time) |
Tried: | Tried: |
Revision as of 10:47, 27 September 2010
2010-09-27
Operator: Mark
Problem 1
Identified by solexious at the weekend
- Arduino resets on serial open() from bifferboard
- Arduino flashes digital outputs high on reset
- Digital output flashing high triggers door open (this seems to be getting worse over time)
Tried:
- Disabling DTS (didn't work)
- Pull-down resistor (10k to 1k)
Workaround:
- Open serial port on boot
- Hope it doesn't restart
To try:
- Physical reset button on arduino (see if it flashes digital pins)
- 120 ohm resistor between 5V and RSET on arduino
- Replace diode on solenoid
- Resistors to reduce sensitivity of darlington
- Use a capacitor to smooth over the reset pulse, requiring > 1 second to trigger relay
- Rebuild darlington/relay board
- Use a solid state relay (no darlington required)
Problem 2
- Chocolate block "plug" is loose, sometimes causing loss of power at slightest touch
To try:
- Replace with header/plugs
Problem 3
- Flashing arduino has stopped working (stk500v1: no response)
To try:
- Another arduinio
Problem 4
- Rootfs went away at 4:04am