Design a PCB to convert input signals of +/-12V for the analog input pins of the Arduino Nano
Budget: €50 – €500 EUR
Design a small PCB to convert input signals of +/-12V for the analog input pins of the Arduino Nano.
Signal inputs:
- Vin1, -12 V to +12V (<<25mA)
- Vin2, -12 V to +12V (<<25mA)
- Vin3, 0 V to +12V (<<25mA)
- GND
Signal output (for Arduino analog inputs, internal resistance ~100MOhm):
- Vout1, 0 to 5V (max current 1mA)
- Vout2, 0 to 5V (max current 1mA)
- Vout3, 0 to 5V (max current 1mA)
- GND
Power supply inputs:
- +15V
- -15V
- GND
Other constraints:
- Max PCB size 50 mm x 50 mm x 20mm
- Use small terminal blocks e.g. similar to Phoenix Contact 1725672
- At least two through holes 3.4mm for mounting
- Voltage limitation 5V on the outputs
- Inputs and outputs labeled (if sufficient space :-)
- Additional label: LNF #9t4Z
- I want to order the assembled PCB at eurocircuits.com or jlcpcb.com - whatever you get along better with, no preference from my side.
Tasks:
- Design circuit
- Provide Vout simulations for Vin = min...max, 0, 10, 100, 1000 Hz (no HF required)
- Design PCB and create everything required for assembled prototype manufacturing at eurocircuits.com or jlcpcb.com: Gerber files, BOM (Bill of Materials) and CPL (Component Placement List etc.
Signal inputs:
- Vin1, -12 V to +12V (<<25mA)
- Vin2, -12 V to +12V (<<25mA)
- Vin3, 0 V to +12V (<<25mA)
- GND
Signal output (for Arduino analog inputs, internal resistance ~100MOhm):
- Vout1, 0 to 5V (max current 1mA)
- Vout2, 0 to 5V (max current 1mA)
- Vout3, 0 to 5V (max current 1mA)
- GND
Power supply inputs:
- +15V
- -15V
- GND
Other constraints:
- Max PCB size 50 mm x 50 mm x 20mm
- Use small terminal blocks e.g. similar to Phoenix Contact 1725672
- At least two through holes 3.4mm for mounting
- Voltage limitation 5V on the outputs
- Inputs and outputs labeled (if sufficient space :-)
- Additional label: LNF #9t4Z
- I want to order the assembled PCB at eurocircuits.com or jlcpcb.com - whatever you get along better with, no preference from my side.
Tasks:
- Design circuit
- Provide Vout simulations for Vin = min...max, 0, 10, 100, 1000 Hz (no HF required)
- Design PCB and create everything required for assembled prototype manufacturing at eurocircuits.com or jlcpcb.com: Gerber files, BOM (Bill of Materials) and CPL (Component Placement List etc.