Tag Archive for "2 IN and 2 OUT DTMF"

Don't miss

GSM Remote Control – 2 IN and 2 OUT DTMF
Part 1 – Introduction
Excellent to remotely control via GSM the activation of engines, lightening or watering systems and alarm systems. It sends commands through SMS as well as with DTMF dual tones and allows you to check if they were...
- Posted 11 years ago
- 0
GSM Remote Control – 2 IN and 2 OUT DTMF
Part 2 – Schematic
Let’s now look into the schematic diagram; in it you can note the usual Microchip microcontroller governing the GSM/GPRS module activity, controlling the logical condition of the two opto-isolated inputs and managing the two relays. Moreover, the...
- Posted 12 years ago
- 4
GSM Remote Control – 2 IN and 2 OUT DTMF
Part 3 – Assembly
On the construction perspective, the remote control does not present many difficulties, just the obvious ones that appear when working with circuits requiring superficial assembly components. As usual, there is a PCB with double plating where...
- Posted 12 years ago
- 0
GSM Remote Control – 2 IN and 2 OUT DTMF
Part 4 – SMS Command
The set of commands of this remote is divided into two categories: the SMS ones and the DTMF tones. The former are simply summarized in the corresponding table, since they are the same as the ones described...
- Posted 12 years ago
- 0

Chip 1 IN – 4 OUT USB 2.0 High Speed
The FE1.1s chip is a high-performance, low-power integrated circuit that...
- Posted 1 day ago
- 0
Display Oled 1.3 inch
1.3″ Organic Light Emitting Diode (OLED) Display with good contrast,...
- Posted 3 weeks ago
- 0
PRO midi 1284P Developer’s Board
Developer’s board specially made for use with the PRO midi...
- Posted 3 weeks ago
- 0
ARDULEGO KIT: create with Lego and Arduino
Lots of components to make applications that can be...
- Posted 4 weeks ago
- 0
LEGO Compatible Arduino Modules Set
Design, build and have fun with this handy case containing...
- Posted 1 month ago
- 0
BME280 – Pressure, humidity, temperature sensor
Ultra-small module (13.3×10.6×3.5 mm) based on the BME280 pressure, humidity...
- Posted 3 months ago
- 0
Jolly: add WiFi to your Arduino UNO
With 10 million Arduino UNO sold worldwide, this board becomes...
- Posted 5 months ago
- 2
Multimedia Box Multimedia with Raspberry PI4 – 4GB
JT-PIMEDIA is a set that includes of a black acrylic...
- Posted 5 months ago
- 0

PCB CAD, A SELECTION GUIDE
Getting to know and evaluate the software offer for PCB,...
- Posted 1 year ago
- 0
DIY Sensor – Innovation & Implementation
A sensor converts data such as heat, light, sound,...
- Posted 2 years ago
- 0
Getting Started with the ESP32
This article is a getting started guide for the ESP32...
- Posted 3 years ago
- 0

The flame that doesn’t burn
Based on Neopixel and a special ultra-thin Arduino, it simulates...
- Posted 5 months ago
- 1
Here are the Winners from the 3Drag 3d printing contest
Here we are, eventually the contest has come to an...
- Posted 8 years ago
- 0
Updates from the 3Drag 3dprinting contest: Roland Hoffert’s Hacks
Roland Hoffert, from www.eytec.de, submitted us this 3Drag (Velleman K8200...
- Posted 8 years ago
- 0
Updates from the 3Drag 3dprinting contest: Karl Seiss’s Hack
Karl Seiss from Austria made a very clever hack to...
- Posted 8 years ago
- 0

PCB Recycling: The Core of Your Electronics Is More Valuable Than You Think
The screen you are looking at this very moment will...
- Posted 5 months ago
- 4
PCB CAD, A SELECTION GUIDE
Getting to know and evaluate the software offer for PCB,...
- Posted 1 year ago
- 0
The Open Source community united against Covid-19
On March 11, WHO (World Health Organization) officially declared the...
- Posted 2 years ago
- 0
Coronavirus: Now Is The Time For Solidarity
The moment we are living, in China before and all...
- Posted 2 years ago
- 0

Arduino ISP (In System Programming) and stand-alone circuits
We use an Arduino to program other ATmega without...
- Posted 10 years ago
- 225
Arduino GSM shield
This is a very low...
- Posted 11 years ago
- 218
Localizer with SIM908 module
The device is based on a GSM/GPRS module with...
- Posted 10 years ago
- 187
GSM GPS shield for Arduino
Shield for Arduino designed and based on the module...
- Posted 10 years ago
- 181
Small Breakout for SIM900 GSM Module
Some post ago we presented a PCB to mount...
- Posted 11 years ago
- 115

Chip 1 IN – 4 OUT USB 2.0 High Speed
The FE1.1s chip is a high-performance, low-power integrated circuit...
- Posted 1 day ago
- 0
Environmental monitoring with uChip
Equipped with an SD card and RTC, it...
- Posted 1 week ago
- 1
CALL FOR MAKERS deadline extendedby July 11st
CELEBRATE TEN YEARS OF MAKER FAIRE ROME WITH US!...
- Posted 2 weeks ago
- 0
Display Oled 1.3 inch
1.3″ Organic Light Emitting Diode (OLED) Display with good...
- Posted 3 weeks ago
- 0
PRO midi 1284P Developer’s Board
Developer’s board specially made for use with the PRO...
- Posted 3 weeks ago
- 0