MIKROE-2154

Signal Relay click 1 Signal Relay click Signal Relay click Signal Relay click IC/Module Interface PCB GV5-1 datasheet [1] AN, RST, CS and PWM Power supply 5V Product page shop.mikroe.com/click/miscellaneous/signal-relay [2] Schematic Signal Relay click schematic [3] Signal Relay click carries four ultra-small GV5-1 PCB relays from Omron and runs on a 5V power supply. The click communicates with the target MCU over the following mikroBUS pins: AN, RST, CS and PWM. Features and usage notes Maximum continuous current The relay contacts are designed for a maximum of 1A of continuous current. The Signal Relay click board is configured so that the switch circuit supply a maximum of 24VAC/30VDC voltage of a power supply source. LED Each GV5-1 relay has its own LED on the board that signalizes whether the relays is switched on or off. Application ON/OFF control in various home automation devices, like alarm units, lamps, heaters, etc. It can also be used for energizing coils of bigger relays and contactors in industrial AC schemes (12/24V). Signal Relay click 2 Key features • GV5-1 relay • Power switching from 1 mA to 1 A • 150 mW nominal coil power consumption • Maximum contact resistance 100 mΩ • 4 pairs of screw terminals • Interface: AN, RST, CS and PWM pin • 5V power supply Pinout diagram This table shows how the pinout on Signal Relay click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes mikroBUStm GPIO for switch ON/OFF RELAY 1 RE1 1 AN X PWM 16 RE4 GPIO for switch ON/OFF RELAY 2 RE2 2 RST INT 15 NC Not connected GPIO for switch ON/OFF RELAY 3 RE3 3 CS TX 14 NC Not connected Not connected NC 4 SCK RX 13 NC Not connected Not connected NC 5 MISO SCL 12 NC Not connected Not connected NC 6 MOSI SDA 11 NC Not connected Not connected NC 7 +3.3V +5V 10 5V Power supply Ground GND 8 GND GND 9 GPIO for switch ON/OFF RELAY 4 GND Ground LEDs and connectors The table below explains onboard LEDs and connectors. Designator Name Type (LED, BUTTON…) Description LD1 PWR LED Power LED LD2 OUT1 LED INDICATOR OUTPUT 1 ON (RELAY1 ON) LD3 OUT2 LED INDICATOR OUTPUT 2 ON (RELAY2 ON) LD4 OUT3 LED INDICATOR OUTPUT 3 ON (RELAY3 ON) LD5 OUT4 LED INDICATOR OUTPUT 4 ON (RELAY4 ON) CN1 OUTPUT TERMINAL 8-POLE TERMINAL BLOCK CONNECTOR RELAY1 CONTACT ENDS (RE1 - CE1) 2.54MM PITCH RELAY2 CONTACT ENDS (RE2 - CE2) RELAY3 CONTACT ENDS (RE3 - CE3) RELAY4 CONTACT ENDS (RE4 - CE4) Signal Relay click 3 Programming This demo turns relays ON or OFF using 4 buttons from the development board. • Max. switching voltage: 125 VAC, 60 VDC • Max. switching current: 1 A This code snippet initializes the TFT display, draws a frame and checks for button toggling in an endless loop, which sets the relay ON or OFF. void main() { Display_Init(); DrawFrame(); while(1) { // Relay 1 if (Button(&GPIOC_IDR, 9, 1, 1)) { if (!oldC9) // detect zero-to-one transition { Delay_ms( 200 ); oldC9 = 1; GPIOA_ODR.B4 = 1; } else // detect one-to-zero transition { Delay_ms( 200 ); oldC9 = 0; GPIOA_ODR.B4 = 0; } } } } Signal Relay click Resources • • • • Signal Relay click schematic [3] PCB GV5-1 datasheet [1] Libstock Library [4] mikroBUS™ standard specifications [5] References [1] [2] [3] [4] [5] http:/ / www. omron. com/ ecb/ products/ pdf/ en-g5v_1. pdf https:/ / shop. mikroe. com/ click/ miscellaneous/ signal-relay http:/ / cdn-docs. mikroe. com/ images/ 2/ 22/ Signal_Relay_click. pdf http:/ / libstock. mikroe. com/ projects/ view/ 1977/ signal-relay-click http:/ / download. mikroe. com/ documents/ standards/ mikrobus/ mikrobus-standard-specification-v200. pdf 4 Article Sources and Contributors Article Sources and Contributors Signal Relay click  Source: http://docs.mikroe.com/index.php?oldid=3023  Contributors: Lana.vulic Image Sources, Licenses and Contributors File:Signal-relay-click-front.jpg  Source: http://docs.mikroe.com/index.php?title=File:Signal-relay-click-front.jpg  License: unknown  Contributors: Lana.vulic File:mikrobus logo.png  Source: http://docs.mikroe.com/index.php?title=File:Mikrobus_logo.png  License: unknown  Contributors: Vojislav.gvozdic License Creative Commons Attribution https:/ / creativecommons. org/ licenses/ by/ 4. 0/ 5