Recommended wiring for Perimeter Sensor?

[robind]

I'm building my Mower, and I'm having trouble with the perimeter receiver losing signal in the middle of my lawn.

Using the Azurit software, I'm seeing smag <300 when the ArduMower is only 3-5 meters from the perimeter at times. (I was expecting much longer range possible).

I'm planning on trying the Raindancer software this week, but before I try other software, I wanted to know whether my hardware choices were correct.

I wired my receiver as follows:
- Coil directly to PCB
- Ground/signal to the terminal blocks
- VCC only to the head of the chip.



Some of my confusion is that:
- This page shows that I should split the ground wire to be on both ends of the PCB
- This thread indicates that the split ground is NOT necessary.

Does anyone have experience with the split/not-split ground? should I modify my receiver?

Thank you

 

[bernard]

Don't forget to shunt the capacitor.
Adjust the poti to the max.
Shunt the 2 GND or not are OK.
And most important put the receiver as far as possible from the PCB and motors.

In the sender side you don't need to calibrate the INA169.
Simply checkArdumower sender firmware )
1 When the mower reach the station the sender yellow led start to blink.
2 When the mower is not into station the sender yellow led is ON.
3 When the mower is not into station and the perimeter wire is cut the sender yellow led is OFF.
If yes all is OK.

On raindancer sender firmware it's opposite on point 2 and 3

On sender PCB the 2 poti are not use, ONLY adjust the DC/DC voltage at 9 or 10 Volt and use a 10 ohm resistor wire to have 1 amp max.