- #1
bakours
- 3
- 0
I am trying to build a BLE device and have run into some obstacles. I did create a basic breadboard circuit using an Arduino Uno and the Redbear BLE Module and am trying to shrink it down to a much smaller PCB. The schematic is attached as well as the datasheets for the microcontroller and the BLE Module.
The device is meant to heat a wire controlled using PWM
Issues:
1. I do not know if an n-type MosFet is appropriate to amplify the current from 40 μA to 2A. If it is appropriate, I need help finding which specific mosfet to use.
2. In general, I would really appreciate it if someone with experience could give any suggestions to optimize this circuit.
3. The BLE Module says it has its own microcontroller. Can this be used instead of my microcontroller for PWM?
4. I have inserted decoupling and bypass capacitors that are polarized. From what I know, these are fine and non-polarized are not necessary. Is this true?
Appreciate all your help, This is my first PCB! :shy:
The device is meant to heat a wire controlled using PWM
Issues:
1. I do not know if an n-type MosFet is appropriate to amplify the current from 40 μA to 2A. If it is appropriate, I need help finding which specific mosfet to use.
2. In general, I would really appreciate it if someone with experience could give any suggestions to optimize this circuit.
3. The BLE Module says it has its own microcontroller. Can this be used instead of my microcontroller for PWM?
4. I have inserted decoupling and bypass capacitors that are polarized. From what I know, these are fine and non-polarized are not necessary. Is this true?
Appreciate all your help, This is my first PCB! :shy: