16 Channel Relay shield problem - Arduino Forum
2018年11月26日 · Then I build my own 13 relay shield to solve that problem, but get the same result. Then I open all 13 relays looks like arduino mega cant sustain that much mA and …
programming relay shield - Arduino Forum
2012年3月15日 · I have just got a relay shield for my arduino. I downloaded the demo code from Relay Shield | Seeed Studio Wiki to test it, and have altered the variable delays succesfully. …
4 Relay Shield, LOW or HIGH - General Guidance - Arduino Forum
2024年6月15日 · The Tutorial in Documents indicates that we need to write a HIGH to activate the N.O. relay contact. The Schematic shows the + side of the relay coil connected directly to 5V …
relay shield v1.3 problems - Motors, Mechanics, Power and CNC
2016年8月25日 · Hi, I have tried to control a lamp with an Arduino Uno and a RFBee relay shield v1.3. -I put electrical tape on the usb connector on the Arduino -I sandwiched the shield onto …
Arduino Uno, Relay shield - relays not picking
2014年2月19日 · Input1 on Shield to Pin 12 on Arduino. Connected this way - the Input LED on the Shield cycles with the button push, but no click or continuity from the Relay. Case B: VCC …
Arduino, relay shield and 12 solenoid valves wiring
2017年5月11日 · For this purpose, I've bought 12 solenoid valves VT 317 (ideal for vacuum, 24V DC, 6W of consumption), and a Relay shield to control them with an Arduino Mega. I've tested …
Code for Seeed Studio Relay Shield V1.3? - Arduino Forum
2013年3月28日 · on the RELAY SHIELD v1.3 Relay Shield V1.3 4 Channel Arduino and i think i make something wrong. I couldn't been able to get it to work. could some one explain it step …
Relay Shield with manual control - Arduino Forum
2013年1月19日 · Does it short the Arduino Pin somehow? is there an opto coupler used? In short, can you post a schematic? Manual switches work on the output side of the opto-isolator chip, …
Using arduino relay shield. - General Electronics - Arduino Forum
2013年6月10日 · When the relay is OFF, the Live wire is 'broken'. When the relay is ON, the Live wire is 'joined' Only difference between the manual light switch and the relay, is that you are …
Read values from webpage to control relay (Ethernet Shield)
2012年3月26日 · Hi, What I am trying to do is with arduino get values from a web site, and from the values close or open a relay (turn a digital pin high or low). While at the same time host a …