Connection Problem with Arduino

[mariolukas]

avrdude reports sync problems with the arduino. Try other baudrates. If higher baudreates work, add optional configuration of flash baudrates to config file.

[brummbaer]

Any news on this one? I can not get it to work even with 57600 baud or 115200 baud. I installed your latest image. My settings are:

"serial" : {
     "baudrate" : 57600,
     "port": "/dev/ttyACM0",
     "autoflash": "False"
   }

with the settings above i can turn the laser on with: echo "M21" > /dev/ttyACM0 but still got the error:

2016-09-07 08:13:40,848 - fabscan.controller.FSSerial - DEBUG - Latest available firmware version is: v.20160620
2016-09-07 08:13:42,419 - fabscan.controller.FSSerial - ERROR - No Arduino compatible device found on port /dev/ttyACM0
2016-09-07 08:13:42,421 - fabscan.controller.FSSerial - ERROR - Fatal Arduino connection error....

and top shows autoreset is on 100% cpu after boot for about a minute.

How do you test whether it is arduino compatible or not? Maybe i can find something. I changed some setting in the arduino files. in FabScanArduinoFirmware: Serial.begin(57600); and ports in configuration.h:

#define LIGHT_PIN A3 // old A1
#define RIGHT_LASER_PIN 12 // old A4
#define LEFT_LASER_PIN 9 // old 9
...
//Stepper 1 as labeled on Shield, Turntable
#define ENABLE_PIN_0  8 //old 2
#define STEP_PIN_0    2 //old 3
#define DIR_PIN_0     5 //old 4

[mariolukas]

Are you using an Arduino or the FabScanPi HAT?

[brummbaer]

An Arduino with motor shield.

[brummbaer]

With the latest FabScanPi-Server_0.3.0_all from today it detects Arduino. Laser/Stepper/Lights are working.

[mariolukas]

I think we can close this issue for now.

[brummbaer]

I think so. 115200 baud and it works flawlessly.

2016-09-08 07:58:02,431 - fabscan.scanner.laserscanner.FSSerial - DEBUG - Latest available firmware version is: v.20160620
2016-09-08 07:58:02,729 - fabscan.scanner.laserscanner.FSCamera - INFO - Camera module ready...
2016-09-08 07:58:03,618 - fabscan.scanner.laserscanner.FSCamera - DEBUG - PI Camera Moule ready.
2016-09-08 07:58:04,137 - fabscan.scanner.laserscanner.FSSerial - DEBUG - Trying to connect Arduino on port: /dev/ttyACM0
2016-09-08 07:58:06,147 - fabscan.scanner.laserscanner.FSSerial - DEBUG - Installed firmware version: v.20160620
2016-09-08 07:58:06,149 - fabscan.scanner.laserscanner.FSSerial - INFO - FabScanPi is connected to Arduino or FabScanPi HAT on port: /dev/ttyACM0
2016-09-08 07:58:08,272 - fabscan.scanner.laserscanner.FSHardwareController - DEBUG - Hardware controller initialized...
2016-09-08 07:58:08,279 - fabscan.scanner.laserscanner.FSScanProcessor - INFO - Laser Scan Processor initialized..
2016-09-08 07:58:08,289 - fabscan.FSScanner - INFO - Scanner initialized...
2016-09-08 07:58:08,290 - fabscan.FSScanner - INFO - Number of cpu cores: 4

pi@raspberrypi:~ $ stty -F /dev/ttyACM0
speed 115200 baud; line = 0;
min = 0; time = 0;
-brkint -icrnl -imaxbel
-opost
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke

pi@raspberrypi:~ $ sudo avrdude -p m328p -b 115200 -carduino -P /dev/ttyACM0

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f

avrdude: safemode: Fuses OK (E:00, H:00, L:00)

avrdude done.  Thank you.

[mariolukas]

By the way, the new version uses 115200 Baud by default now. I added a new config setting, which is optional and default value is 115200.

https://github.com/mariolukas/FabScanPi-Server/blob/master/src/fabscan/scanner/laserscanner/FSSerial.py#L31

"serial" : { "baudrate" : 115200, "autoflash": "True", "port": "/dev/ttyAMA0", "flash_baudrate": 115200 <------ this one is new, by default not visible and 115200 }