Thanks for all your comments!!
I will implement all your improvement this weekend. I come back quickly.
Best posts made by wrendral
Latest posts made by wrendral
RE: PCB verification request for latching valve controller
PCB verification request for latching valve controller
I’m an engineer and a farmer.
I’m working one a cheap solution for irrigation control valve.
My specifications :
Use latching valve. Long range remote control ( 500m with some tree) 4 month automy Under 50 euro per unit
My complete design will be :
A remote center, based around an arduino pro mini with 4g module and an RF Module
This base will receive my order from my phone and send it to slave control valve using RF Module.
I’m currently working on the PCB of the slave Valve.
But i need some help to check if the solution used is valid.
You will find all my work on git hub.
To control a latching solenoid we need a circuit able to create a 100 ms 12v impulse through a 6 ohm solenoid.
On my schematic I create a step up module around a ADP1108.
I use a capacitor (C2) to store enough energy.
A Mosfet (controlled by an Arduino) and a 2 pole bistable relay are used to discharge this capacitor and switch the polarity if needed.!
I use an FS312 to secure my lipo battery.
If the working principle is good I will calculate all the value of the components.
Do you see any problems on this PCB?
Thanks for your help.
Sorry for my rusty english.