Electric/electronic problem arduino-relays-AC_motor

Hello, i have created a window blind/cover control for arduino, all fine... until the 300W motor comes into scene.

Problem: the arduino resets REALLY OFTEN when motor starts. Or immediately at relay activation, but ONLY when motor is connected.

The schema is simple:
-2 relay TTL module https://es.aliexpress.com/item/33050594625.html?spm=a2g0s.9042311.0.0.34d663c0IVo8Q3
-Arduino pro mini 3.3v
-RA-02 antenna
-Power supply: Diymore Módulo transformador AC 110V 220V a DC 5V 700mA, convertidor reductor de AC DC, placa de fuente de alimentación|buck converter|ac-dc 5vdc dc 5v - AliExpress
-Cables:
1.5mm for 220v power
0.15 jumper/cables internal circuit

220v to:
-Motor
-Power supply
-Relays

5v to:
-Arduino pro RAW
-Relays power

Arduino 3.3v internal used for RA-02

Pls hLp :cry: :cry:

It sounds like you have interference from the motor at startup.

Does the problem persists if you power the arduino from a battery instead from the PSU?
I would also suggest good metal shielding of the arduino with solid ground.

Hi,

Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?

Can you post a picture of your project so we can see your component layout?

Have you got the 230Vac wiring away fro the controller and low voltage wiring?

Thanks.. Tom... :slight_smile:

Solved using different power supply.

The posted before output was like this:
Google Photos

0.2V default ripple, and vcc shakes when engine starts.

I just finally used a phone charger circuit.

Thsnka 4 all anyway