Forum >Power to Mega and Sensor shield v1.2 for the Sumo Robot
Power to Mega and Sensor shield v1.2 for the Sumo Robot
MediNait1 2012-02-22 13:04:00 9937 Views4 Replies Good day to everyone
I have no clue about powering my Arduino Mega now that I have the Mega Sensor Shield v1.2 on top. Since the project is a sumo robot I will not use USB or adapter and this leave me with a battery.
I am using the Arduino Mega and the DFrobot Mega Sensor shield v1.2(obsolete now).
Here is what I have: - Battery leads: 6V and a 12V NiMH in series;
- Arduino Mega2560;
- DFrobot Mega Sensor Shield v1.2;
- 2 L298 motor driver;
- 4 QRB1114(white line sensor); and
- 8 Sharp IR Range Sensor.
My sumo robot is dead without any power. I was expecting a Vin but the sensor shield is on top. The sensor Shield as two bus (power In + &-) but only seems to power the sensors if I am right?
I would really appreciate some advice on how to use the Sensor Shield v1.2.
Thank you
I have no clue about powering my Arduino Mega now that I have the Mega Sensor Shield v1.2 on top. Since the project is a sumo robot I will not use USB or adapter and this leave me with a battery.
I am using the Arduino Mega and the DFrobot Mega Sensor shield v1.2(obsolete now).
Here is what I have: - Battery leads: 6V and a 12V NiMH in series;
- Arduino Mega2560;
- DFrobot Mega Sensor Shield v1.2;
- 2 L298 motor driver;
- 4 QRB1114(white line sensor); and
- 8 Sharp IR Range Sensor.
My sumo robot is dead without any power. I was expecting a Vin but the sensor shield is on top. The sensor Shield as two bus (power In + &-) but only seems to power the sensors if I am right?
I would really appreciate some advice on how to use the Sensor Shield v1.2.
Thank you
2012-02-25 20:50:00 Thank you so much both of you Ricky and barrymachine.
I will go with your recommendation and I will solder my battery leads with a 2.1mm DC male jack to power my Arduino Mega2560. I will ensure I make the difference with the polarity. Would there be a manual for the Sensor Shield by any chance?
Thank for the power advice. 12V will go to the power jack on the Arduino Mega
Ricky, the Mega Sensor Shield v1.2 has no jumper and I even look with a magnifier. I will explore the Sensor Shield further using the SD Card and the Xbee later on.
Thanks again Really appreciate the help. MediNait1
I will go with your recommendation and I will solder my battery leads with a 2.1mm DC male jack to power my Arduino Mega2560. I will ensure I make the difference with the polarity. Would there be a manual for the Sensor Shield by any chance?
Thank for the power advice. 12V will go to the power jack on the Arduino Mega
Ricky, the Mega Sensor Shield v1.2 has no jumper and I even look with a magnifier. I will explore the Sensor Shield further using the SD Card and the Xbee later on.
Thanks again Really appreciate the help.
MediNait1 2012-02-24 22:56:45 Barry is right.
The ideal power supply for your system is
6V->Arduino Mega
12V-Motor driver module if your motor is operating under 12V
R2D2C3PO
The ideal power supply for your system is
6V->Arduino Mega
12V-Motor driver module if your motor is operating under 12V
R2D2C3PO 2012-02-24 20:16:27 Hey, I checked my Mega Sensor shield v1.2 just now, and I found the Vin+ of the blue terminal on the board is directly connected with VCC pins in the digital output area. So external power supply through the blue terminal is only used to power high-power units connected to digital pins like servos which sometimes require more than 5v power supply and even more currents (Arduino can only output 40 mA for each I/O), that means if you supply more than 5V to the terminal, some sensors or other parts will damage. 
For your 18V battery(6V+12V,right?), I think the only way is to power through the power jack of your mega controller which can stand 6V-20V, but 7V-12V input is recommended, for my test showed 18V input could make the chip next to the jack very hot.
Good luck!
barrymachine
For your 18V battery(6V+12V,right?), I think the only way is to power through the power jack of your mega controller which can stand 6V-20V, but 7V-12V input is recommended, for my test showed 18V input could make the chip next to the jack very hot.
Good luck!
barrymachine 2012-02-24 06:36:38 Basically, you can power your mega via the power jack on Arduino Mega. or Power the Arduino mega via the sensor board. There is blue terminal which can provide power, and you need apply jumper on the right side of the terminal to power the mega. R2D2C3PO
R2D2C3PO 