4-20mA loop receiver, 0-10V and dry contact for arduino
Budget: €30 – €250 EUR
I need a schematic for 4-20mA loop receiver with the ability to receive also 0-10VDC and monitor the state of a dry contact.
All the sensors are powered up using external power supply, NOT from the "measuring" circuit.
NOTE: The circuit have to work with 3V, due to the fact that is powered using 2xAA batteries
These are the overall specs:
- The circuit has to be designed on EasyEda, only schematic, no PCB and the parts has to be available and ready to be ordered
- Due to the fact that the circuit will be powered up with 3V, the circuit has to be switched on/off from the main MCU *only* when i have to measure the 4-20mA or the 0-10VDC, using a Digital output. (managed by my own firmware)
- The circuit has to be stable and must work also when the battery will discharge around 1.8/2V
The circuit HAVE TO USE THE LOWEST BATTERY AS POSSIBLE, as it will have to work up to 2 years.
Schematic need to be delivered.
All the sensors are powered up using external power supply, NOT from the "measuring" circuit.
NOTE: The circuit have to work with 3V, due to the fact that is powered using 2xAA batteries
These are the overall specs:
- The circuit has to be designed on EasyEda, only schematic, no PCB and the parts has to be available and ready to be ordered
- Due to the fact that the circuit will be powered up with 3V, the circuit has to be switched on/off from the main MCU *only* when i have to measure the 4-20mA or the 0-10VDC, using a Digital output. (managed by my own firmware)
- The circuit has to be stable and must work also when the battery will discharge around 1.8/2V
The circuit HAVE TO USE THE LOWEST BATTERY AS POSSIBLE, as it will have to work up to 2 years.
Schematic need to be delivered.