Difference between revisions of "Door control system/Logbook"
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| Line 13: | Line 13: | ||
* Disabling DTS (didn't work) | * Disabling DTS (didn't work) | ||
| + | * Pull-down resistor (10k to 1k) | ||
Workaround: | Workaround: | ||
| Line 24: | Line 25: | ||
* 120 ohm resistor between 5V and RSET on arduino | * 120 ohm resistor between 5V and RSET on arduino | ||
* Replace diode on solenoid | * 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 | * Use a capacitor to smooth over the reset pulse, requiring > 1 second to trigger relay | ||
| − | * Rebuild | + | * Rebuild darlington/relay board |
| − | * Use a solid state relay (no | + | * Use a solid state relay (no darlington required) |
| − | |||
=== Problem 2 === | === Problem 2 === | ||
Revision as of 10:27, 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
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