# simple periodically switching circuit

I am currently using an arduino coupled to a mosfet to drive a 3v DC motor. What it does, is turn on the motor for a second, wait 10min, turn it on again for a second, and repeat the next day. I would like to go a step further, and replace the arduino by a simpler setup, but I don't know what circuit I'm looking for. I feel like it should be a modification of something that generates square waves, just with a much longer period.

Replay

If you want a non-micro solution you might want to try MAXIM INTEGRATED PRODUCTS ICM7240IPE+ IC, TIMER. You will need to add an extra monostable (555) chain to provide your desired waveform. Be very careful when using the 555 to generate long delays - Electrolytics have wild tolerances, high leakage currents and poor temp stability. If the leakage of your timing cap exceeds the charging current, the device will never trigger!

Alternatively you could code it into some small PIC device with an internal oscillator, or even load the compiled arduino code into an AVR micro.

The PIC solution is the cheapest by far, but you would need to code it in C or assembler.

The AVR solution would enable you to use your existing working code, but you would need to provide any necessary supporting components (oscillators, voltage regs, etc)

Category: mosfet Time: 2016-07-30 Views: 1

## Related post

• Simple SPST Switch Circuit - Pull-down Resistor VS. Current Limiting Resistor 2015-02-22

Super Noob EE question: Here is my quick draw-up of my SPST switch circuit schematic. I know I probably did not do this right, but if it gets the idea across, then thats good enough for me atm. – Schematic created using CircuitLab The right boxed sec

• How can I build a switching circuit that scales several 12v signals down to 5v? 2010-10-15

Let me start off by saying that I know just enough about electronics to be dangerous (how to solder, follow a simple schematic, and check for connectivity problems and usually figure out what each wire is for). I've installed a cruise control kit in

• What is wrong here? - A simple NPN switch 2011-12-07

I have a simple npn switch, see the diagram. I feed a 100KHz square wave (TTL) to the base of this transistor and it turns on very very fast (a few nSec) but it doesn't turn off as fast, it almost takes 2uSec for it to turn off. (I am looking at the

• Simple voltage regulator circuit with 7805c outputs very low voltage 2014-11-17

I am trying to make simple voltage regulator circuit from my 9V battery to 5V using 7805c voltage regulator. The schematic looks like this: – Schematic created using CircuitLab My question is - why the output voltage is so low? Did I fried somehow IC

• Can a simple voltage divider circuit be used to accurately measure voltage? 2014-11-18

I have a discharger circuit that I intend to hook up to a 3V battery. Total resistance of the circuit (depending on how fast I intend to discharge it) will vary from 0.04 to 0.01 Ohms (that's 75A and 450A respectively). Can I hook up a simple voltage

• Simple Multilanguage Switcher 2011-08-23

Firstly i have been install wp with different languange with indonesian languange as default, i have plan, want to translate with other languange, How to simple translate switch, but keep Indonesian as default. with .po file thanks for the help ... -

• How to design a simple linear DC circuit in Ngspice? 2011-09-15

I'm trying to implement a simple linear DC circuit in ngspice, but the program and manual are overwhelming. The circuit I'm trying to get started with is a voltage source (e.g. cell) connected to itself through a resistance. Looking at the list of in

• Is it possible to design a switch circuit with XNOR's truth table value? 2012-09-25

We all know XNOR's truth table right? Is it possible to design a switch circuit (not a gate circuit) using XNOR's truth table value. I had tried for 40 mins and it seems impossible. Switch Circuit Example: image --------------Solutions------------- I

• Simple vending machine circuit 2013-04-08

As a homework assignment, I was given to design a simple vending machine circuit as follows Receives 5 cent, and 10 cent one at at time. 20 cent per snack, gives change when necessary (IE, 25 cents, gives 5 cents back with a snack) Once snack is give

• why and how do I use a capacitor in a switch circuit? 2013-06-02

I have seen many designs of switch circuit: I know that a capacitor will help anti-shake but I realy do not know how i can anti-shake. Does it work like a decoupling capacitor or a low-pass RC filter? and then I want design another switch circuit but

• Simple DC failover circuit required 2013-09-01

What I would like, is a circuit diagram that shows me how to constantly monitor a dc voltage of either (say)7.8v DC or 11.8v. If that voltage drops below (for instance) 7.4v or 11.2v under load, a latched LED indicator is shown and the circuit switch

• Creating a Simple Style Switcher 2014-04-11

One way to enhance your site's user experience is to allow your visitors to personalize certain aspects of it. This could be anything from increasing font size, to selecting an appropriate language or locale. As a developer, the challenge in implemen

• How to design a power switching circuit using a photo-interrupter 2014-08-22

Okay. I'm completely at a loss here. I was trying to design a switching circuit for a 3A load (Solenoid) using a photo-interrupter. I got to about here: But I have no idea what to look for in my parts. I plan to use these as the current limiters, and

• Deciding base resistor for transistor switch circuit 2014-09-10

I'm building a transistor switch circuit and below is the schematic. – Schematic created using CircuitLab I calculated R2 resistor (base resistor) value from this formula: $$R_{R2}=\frac{V_{BAT2}-V_{be}}{(V_{BAT1}-V_{ce})/R_{R1}/h_{fe}*2}.$$ Is this

• Impedance Matching a switching Circuit 2015-05-14

I'm trying to mathematically model a Class E amplifier in the hopes of deriving a relationship between the input and output (Transfer Function). One particular difficulty i'm facing is impedance matching the load to the rest of the circuit. The regul

• Simple NMOS transistor circuit output impedance 2015-10-06

I am having trouble figuring out the best way to determine the output impedance of this simple NMOS transistor circuit: Both transistors are equal, and the body effect is ignored. What method should I use to find the output impedance? Should I find t

• GND plane under power switching circuit 2016-03-01

I've a 4 layer PCB in which i've to layout a power switching supply mixed with digital signal circuit. My stack up is: -Top Layer: component and routing (power net and signals) ---internal plane 1: GND ---internal plane 2: +3V3 -Bottom Layer: routing

• test 0.5A inductive load through switch circuit 2016-06-23

We are a switch component manufacturer and typically run life cycle tests with resistive loads through our switch circuits. Can someone recommend a circuit diagram set up to test an inductive load through same circuits? Typical ratings 2.0A resistive

• How do I create a 5 second delay in my simple infrared barrier circuit? 2016-07-23

I am building a simple infrared barrier circuit. When the barrier is cut, I want a five second delay before my piezzo goes off. I've read about the 555 timer IC but I don't exactly know how to use it in the circuit to make a delay. Thanks