5V DC Relay Modules – 1, 2, 4 and 8 way Opto Isolation arduino pic pi avr NewUK
£3.67 – £13.79
These high quality 5V DC Relay modules uses low power SMD components, allowing for easy switching of higher voltages and are ideal for use with a microcontroller such as a PIC, Arduino, ARM or AVR.
The relays used in these modules can be used to switch up to 10A at 250V AC, or up to 10A at 30V DC.
We supply these modules in 1 way, 2 way, 4 way and 8 way versions. All versions provide LED indicators to show which relays are currently on.
If the input voltage is low, the relay’s NO (Normally Open) contact is connected to the relay’s COM (common) contact. If the input voltage is high, the relay’s NC (Normally Closed) contact is connected to the relay’s COM (common) contact.
The 2 way, 4 way and 8 way versions have additional protection for your microcontroller through the use of an opto-isolator for the actual relay switching – simply remove the jumper connecting the VCC and JD-VCC pins, and you can supply separate power for VCC (the microcontroller side) and JD-VCC (the relay coil side). A diagram of this is shown below:
PLEASE NOTE THE SINGLE RELAY VERSION DOES NOT HAVE THE VCC and JD-VCC pins
PLEASE NOTE THE 1 WAY RELAY BOARD DOES NOT HAVE OPTO-ISOLATION
**** Important note **** Some sellers claim the stock is in the UK, please be careful, the seller is often in China and sends the item to a UK agent who then forwards the item on with a UK stamp. Check where the seller is located not just the item location. All my items are physically with me, here in the UK and I offer a quick delivery and communication within the UK.
During busy periods there maybe a delay in delivering your package by Royal Mail. I apologies in adavnce for any inconvenience but would like to point this out before you place your order.