relay

Hello, I m working on a project for understanding of milks boiling process.I will save and graph tempreture data via Arduino Uno(with Micro SD module module and RTC).I m beginner and I m figuring out projects technical requirements step by step. Component list D18B20 Water Proof Tempreture...

Need help simplifying this project as arduino is abit overkill for this application. I am abit noob at electronics and wondering if there are any IC's or modules that will simplify or make this project more efficient. Thanks. Description IR-1 and IR-2 are IR obstacle avoidance sensor modules...

Hello guys New here. I am trying to work out what would be the best way to control a 2v load using something like an ESP32 (3.3v) So what i have is: ------------- | BATTERY | (1.5 - 2.2v) ---> something?? >>> Resistor ---------------...

Hi, Question: How do I drive a 1A/24V relay which switches an AC resistive load ? Attached: My block diagram with detailed pns of components Flow/Notes/Issues/: 1)I cannot change the 24V EM relay pn, it is fixed, everything else is flexible...

Hello. I want to control a servo motor using a time relay in a project. How can I do that?

Hi all, My requirement is to connect an additional light in parallel to my car's interior cabin light. My car supports upto 10w and I already have a 2W LED bulb inside, and the additional light is about 25W, so connecting it directly is not an option. So I connected a 12v relay with the signal...

I have been looking around of this data sheet so I can know which pin I connect to the DC and which one I can use for NC or NO so I make my circuit running. on the data sheet I could not find due my lack experience in using relays, the pins and their functions on the following data sheet:relay...

Hi All, It's been a long time since the high school electronics classes doing circuit design. I have a CNC router and need to connect up 2 Proximity Sensors to the one GPIO input. I have tried connecting them in series, but I am only getting a 12V trigger signal with 24V supply. So I thought...

I have a relay but rated at 3A, 30V DC only similar to this. When I connect the Pole and NC directly using a lithium ion battery (4V), a fire occur and it shortcicruicted. However, when i measure the resistance betwwen 2 pins (Pole and NC), it reads 16 Ohms. What should i do :) ? Thank you for...

Hi, I have to switch a high current(DC 12V@~60A approx.) for a battery-supplied circuit. But its on-status resistance should be as low as possible. Because you know the Ohm's Law, the I is going to increase up to even 100 amps sometimes, so a very small resistance creates a big difference. I...

I setup two small circuits on breadboard with BD139 transistors to drive a 12v 0.2A motor and 24v 0.15A Relay to learn transistors, I can switch ON transistor through base resistor using 3.3v PSU. I know when motor/relay stops it can push back some current and i believe its called current...

I am using an Arduino mega to switch several of these very common relays with a 24v inductive load on pretty much all of them and I am having a peculiar and extremely frustrating issue where during switching (frequently but not always) the Arduino will reset, when monitoring the arduino's 5v...

Hi. Wanted to change a couple of small power relays on a washing machine. Can anyone help me and guide me if the relays I got for replacement HF3FA 012012-ZTF(335) are compatible with the ones on the PCB? (H3FA 012-ZTF(088) I cannot figure out the datasheets for either of this. Cheers!

I am using a relay to turn ON/OFF the AC load. But when i turn ON and turn OFF the AC load (230 VAC) 3-4 times my controller gets hang. Here is my circuit diagram for the relay. The ground is common in all over schematic. What changes do I need to do for improving the noise?

Hi All I am new to the forum. I am working on a project, where i need to control 24VAC solenoids using my microcontroller. Previously i have used standard bulkier relays, but i now need some thing much smaller in design, therefore aim to use the AQH2213AX SSR. Can anyone advice, if the design...

Hi everyone. As stated I am trying to figure out the easiest way to make a momentary switch control button control the on and off for my 12V lights I have on my vehicle. I know the very basics of electronics, I currently have the lights powered by two different switches on relays. Longer story...

I'm planning for a project where I need a NC relay with a 24 VAC coil to disable my AC condenser fan, and I could use help selecting a correct relay to use and ensuring it's wired correctly. The condenser fan (OFM in the 1st diagram) is pretty typical with 3 wires, 1 coming from the contactor...

I have been working on a circuit to turn a motor on for several seconds, and then off for a longer period, using a 555 astable circuit. The on time needs to be around 5-10 seconds, and the off time needs to be about a minute. To get around the 50% duty cycle issue and allow for a longer off...

So I am having some trouble building the circuit I had built in a sim, several to be exact, which all seemed to work the way I wanted them to. Now that I have built the circuit on a board, Im not getting the results expected. Checked wiring and and parts, things look ok. Odds are I have missed...

I bought a relay like this today for my raspberry pi, and I am encountering a very strange issue. I connected the 5v output to the VCC pin, the ground to ground and a GPIO pin to the IN pin on the relay. I opened python and assigned 'led' to 'LED(15)', which is very standard. THAT triggered the...