Phone Trigger

580

06:12:41

To trigger circuit from phone flash light

button = du30 photoelectric transistor (just provide open wire)
relay x 3= find smallest relay module (3.3v/5v trigger)

source 1= 1 battery lipo (12v) for load ( sensor rs485 milivolt)

source 2= 1 powerbank (5v) for load ( microusb charger port included short cable)

source 3 = 1 powerbank (5v) for load , port usb type A female  ( usb wifi modem - LTE 4G Wifi Dongle usb )

https://shopee.com.my/Unlocked-4G-LTE-WiFi-Hotspot-Wireless-USB-Dongle-150Mbps-Modem-Stick-Card-i.89116489.3531096574

source 4 = power to trigger all 3 relay, can tap from source 3

published 5 years ago

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