![Homebrew Multimode Digital Voice Modem adapter Homebrew Multimode Digital Voice Modem adapter](https://www.electronics-lab.com/wp-content/uploads/2016/07/13d9a25b-7b84-4911-8865-4b00101be555-1024x768.jpg)
Homebrew Multimode Digital Voice Modem adapter
Florian Wolters made his own version of MMDVM adapter: During experiments with digital voice mode in hamradio I discovered a nice project describing an adapter for D-Star, DMR and other digital modes based on an Arduino Due and a little PCB to be put on top. This unit is called the...
Continue Reading![Not a battery or a supercap, but a ‘thin laminate energy device’ Not a battery or a supercap, but a ‘thin laminate energy device’](https://www.electronics-lab.com/wp-content/uploads/2016/07/160720edne-murata-umal_pr.jpg)
Not a battery or a supercap, but a ‘thin laminate energy device’
Murata’s UMAL is a low-profile high capacity energy device. Designed to meet the demand for a slim high capacity energy source with a maintenance-free extended life cycle in wireless sensor nodes, the UMAL has charge/discharge and life-cycle characteristics superior to conventional...
Continue Reading![Accurately simulate an LED Accurately simulate an LED](https://www.electronics-lab.com/wp-content/uploads/2016/07/286005-accurately_simulate_an_led_figure_1.gif)
Accurately simulate an LED
Jon Roman and Donald Schelle have a design idea on how to simulate a high power led to test your driver circuit. Testing the driver circuit using LEDs, although easy, yields only typical results because the tests don’t factor in worst-case LED parameters and often generate...
Continue Reading![Adjustable HV Power Supply for Stompbox Adjustable HV Power Supply for Stompbox](https://www.electronics-lab.com/wp-content/uploads/2016/07/FOI027AIQSABHXE.MEDIUM.jpg)
Adjustable HV Power Supply for Stompbox
This SMPS can be powered with low input voltage, from 5 VDC to 15 VDC and provided adjustable Output Voltage: + 92 Vdc to +340 Vdc. Can be used too, as power supply, for the Xenon Lamp, Nixie tube Clock, VFD display, Magic Eye, Neon, and too many others electronics circuits who need...
Continue Reading![Send and Receive SMS with GSM SIM900 Arduino Shield Send and Receive SMS with GSM SIM900 Arduino Shield](https://www.electronics-lab.com/wp-content/uploads/2016/07/F5XE6R3IQOQRUEA.MEDIUM.jpg)
Send and Receive SMS with GSM SIM900 Arduino Shield
In this Instructable, you will learn how easy it is to send and receive SMS messages over GSM with Arduino. One of the essential elements of building IoT project is the ability to connect devices. Wi-Fi and Bluetooth are good low cost choices, but they work only at close ranges, or...
Continue Reading![How to Interface Stepper Motor With Arduino How to Interface Stepper Motor With Arduino](https://www.electronics-lab.com/wp-content/uploads/2016/07/FR9XB0BIQQUXB3T.MEDIUM.jpg)
How to Interface Stepper Motor With Arduino
This tutorial is going to teach you some basics on using Stepper Motor while interfacing with Arduino and Stepper Motor Driver. Bipolar Stepper Motor is DC motor that move in discrete steps. It has multiple coils that are organized in groups called "phases". By energizing each phase...
Continue Reading![ESP8266 temperature logger ESP8266 temperature logger](https://www.electronics-lab.com/wp-content/uploads/2016/07/phimg_20160301_204007-600.jpg)
ESP8266 temperature logger
A ESP8266 temperature logger project from Facelesstech: I decided to use the esp-01 module because I only need 2 GPIO pins since I was using the DS18B20 temp sensor and the WS2812 LED. This made the hardware really cheap and easy to reproduce too. I normally use FTDI boards when it...
Continue Reading![Iterated-map circuit creates chaos Iterated-map circuit creates chaos](https://www.electronics-lab.com/wp-content/uploads/2016/07/DI5518f1.gif)
Iterated-map circuit creates chaos
Lars Keuninckx @ edn.com writes: The Design Idea circuit shown below is a simple implementation of an iterated unimodal map, reminiscent of the logistic or Verhulst map encountered in the study of nonlinear dynamics. It is useful to show chaotic discrete-time dynamics to students, or as...
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