Internet of Things Build Project using the ESP8266

WiFi Serial Transceiver Module
The last few weeks we’ve been playing with the ESP8266, an Arduino and some sensors and thought we could have a build at H4H for those who want to learn more about this amazing little module.
Build description:
We will be showing you how to interface your Arduino with the new ESP8266 wifi module and send data from sensors connected to the Arduino to a server on your LAN or to one of the IOT web services, e.g. ThingSpeak.
For this course we will be using the ACS714 current sensor and/or the DHT11 Digital Temperature and Humidity Sensor, but feel free to bring any sensor you like.
On the server side we will run a simple socket program to show how the ESP connects and sends data.
Then we’ll setup a Thingspeak channel and show you how to send data to it.
We will only be prototyping this, in other words, the final product is breadboard with jumper wires to connect everything.
Future courses will build on this to make a more permanent product and will consist of designing and etching circuit boards, independent power supplies, housing your product, more advanced python to display graphs of your data, etc.
You need to be familiar with the Arduino environment, e.g. IDE and how to upload sketches, etc.
Equipment used in the build
- ESP8266 serial wireless module
- Arduino Pro Mini 3V3 (The ESP8266 is not 5V tolerant)
- CP2102 USB Programmer Module (This serial module talks 3.3V)
- ACS714 -30A to +30A current sensor (1)
- Breadboard
- F-F and M-M Jumper wires
- Your own laptop/computer with Arduino IDE installed.
(1) If you use the ACS714 you will also need a 220V plug, adaptor and about 1M of cable.
It will be on Tuesday evenings, probably starting middle of February.
Complete the form below if you are interested. The cut-off will be end of January.

Posted in: Builts, Courses

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Random Hacks of Kindness – 6 December

We will be hosting a hardware based RHoK event at House4Hack on Saturday 6 December from 8:00 till 18:00.  We have limited space, so please register if you want to participate:

We will be working on the following challenges:

1. ASE Vacuum Former – During our previous African School of Excellence road show, we demonstrated a vacuum former to the kids – they loved it!  We want to build one for them and make some videos of the build and how to use it.

Need people that like building with their hands, a camera man and someone that can help with video editing afterwards.  Also some web expertise to setup a small site with links to the videos on youtube.

2. Morgan instructional videos – Robobeast donated a Morgan 3d printer to African School of Excellence and we want to make some instructional videos for the kids on how to 3d print, calibrate the printer, trouble shoot etc.

Need someone with a video camera and people that can help with editing

3. Flying donkey – the idea of this challenge is to develop a long range cargo able craft to transport medical samples and vaccines to a from remote areas.  Activities for the day will really only be in terms of conceptualizing and initial design.
Need people enthusiastic about using UAV technology for developing problems and people with experience about remote access, health care etc.


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Introduction to Arduino


The introductory course for 29 November is fully booked!

For those attending, we are starting at 9:00 and will continue till about 13:00.  Do not forget to bring along your laptop and if possible install the Arduino IDE from

If you have any queries or last minute requests or have to cancel or will be late, please contact me on 082 777 7098

Posted in: Arduino, Courses, Featured

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Get involved

Mailing List / Forum: Google Group

  • Schalk 082 777 7098
    schalk dot heunis at gmail dot com
  • Guy 084 678 0045
    guy dot vandenberg at microsmart dot co dot za
  • Toby