This is a very low cost and simple Arduino GSM and GPRS shield. We use the module SIMCom SIM900 . It’s the cheaper module now available in the market. The module is not simple to mount by an hobbyst, so we use the Breakboard TDGGSM_900 that we presented here . You can buy the GSM module premounted here . This …
Update: 7th April 2019 – Rev 3 of lp_BLE_TempHumidity, adds Date/Time plots, using pfodApp V3.0.362+, and auto throttling when sending dataUpdate: 24th March 2019 – Rev 2 of lp_BLE_TempHumidity, adds more plot options and i2c_ClearBus, adds GT832E_01 support Introduction This tutorial, A Redbear Nano V2 Replacement, is Part 3 of 3. This is Revision 2 of this …
Easy Very Low Power BLE in Arduino Part 3 – Nano V2 Replacement – Rev 3 Read More »
*** Additional info at http://droidalyzer.com/talkingbreathalyzer/index.html *** A customizable Breathalyzer that talks and tells you how much you’ve had to drink. It’s also open source and can easily be modified with your own text on the LCD screen and audio MP3 files. When tethered to a PC with a USB cable, it has additional features including character animations, …
As hard as it might be to believe, I had never built an electronic clock of any kind. I’ve always thought electronic clocks were passe and not worth the time to design and build one. In addition, I thought that all interesting electronic clocks designs had already been built so why bother building an also …
Since you’ve gotten into electronics, haven’t you wondered if there is a fart sensor out there? I sure did. I discovered that if you use a methane sensor, especially the MQ-4, even at very low concentrations, it reads farts. What if you combined that into a hat with an LED Bar Graph and a XBee? …
Rather than just giving an off-the-shelf toy gift, I wanted to give my nephews a unique gift that they could put together and (hopefully) enjoy. While the Arduino code for this project may be too difficult for them to understand, the basic concepts of input, output, loops, and conditions used in this code could be …
This topic shows how to interface Arduino with DS1307 real time clock to make a clock and calender. To understand the project and code easily you have to read the datasheet of the DS1307. DS1307 Pin assignment: The picture is taken from ds1307 datasheet and it shows the pin assignment of our chip RTC: Arduino …
I could not find instructions on a good Arduino chess clock so instead I built my own which I will describe here. Step 1: Parts list [box color=”#985D00″ bg=”#FFF8CB” font=”verdana” fontsize=”14 ” radius=”20 ” border=”#985D12″ float=”right” head=”Major Components in Project” headbg=”#FFEB70″ headcolor=”#985D00″] here are the things you will need: Arduino nano (or any arduino UNO type …
I’m still working on the LED calculator (original idea and most recent work) — I’ve finally got ’round to adding a rotary encoder to set the target system voltage. Now you can turn the potentiometer to set the LED brightness, turn the rotary encoder to set what voltage will be used in the ultimate LED circuit, and …
In this Arduino-based project, we will build a lamp with multiple light displays: color sequencer, dimming light, color chaser, firelight – all selected by a touch bar on the circuit board. All the functions are done in software, including the touch sensor, which is a unique feature. Step 1: What is needed? We will be …
