SmartWatering – Arduino plant watering


Arduino based project in charge of taking care of your green plant.

Particle Core based project in charge of taking care of my green plants.

The water pump will not work with a voltage under 5V. In order to power it, I soldered a wire straight on the VUSB pin of the USB header. The following picture illustrates where to solder the wire on the former Arduino Nano. You can do the same with the Particle Core diode (black component between the USB header and the VIN pin).

SmartWatering – Arduino plant watering – [Link]


Easy Planter – A Simple Way Of Monitoring Plants


Easy Planter is a plant monitoring device able to sense temperature, humidity, pressure, moisture, light etc.

A small bluetooth low energy plant sensor that easily fits into a plant pot. It can monitor temperature, humidity, pressure, moisture, light, and has I2C extension pins so that you can add other modules. Information is sent to a phone, and notifies you when it needs something.

Easy Planter – A Simple Way Of Monitoring Plants – [Link]

One Channel Infra Red Remote Controller


One Channel Infra-Red Remote and receiver with onboard Relay provides normally open and normally closed output. The project based on PIC12F683 Microcontroller from Microchip , TSOP1738 used as Infra-Red receiver. Micro-controller decodes the RC5 serial data coming from TSOP1738 and provides high output if the data is valid. The output can be set Momentary or Latch using on board Jumper (J1) and closure. The board provided with 3 LEDs, Power LED, Valid Transmission LED and Output LED. This Remote works with switch No1 of RC5 Remote.


  • Power Supply Remote 2X AA Batteries
  • Power Supply Receiver 7-12V DC
  • Current Consumption Receiver 30mA
  • Onboard jumper for momentary and latch operation selection
  • Transmitter range 10-15 feet
  • RC5 (Philips) Remote
  • Onboard power LED
  • Onboard output ON/OFF LED
  • Onboard Valid Transmission LED
  • Onboard 5V regulator
  • PCB Dimensions 59.06 MM X 29.53 MM

One Channel Infra Red Remote Controller – [Link]

Proteus Tutorial – Light Emitting Diode (LED) and Bar Graph Display

Selection-of-Edit-Properties-Option-in-Proteus guide us to the basics of LED and bargraph usage in Proteus software.

In this post we will be learning on how to use the “Light Emitting Diode (LED)” component in Proteus simulation software. In case you have not got on through the basics of Proteus, here is the link – Proteus PCB Design and Simulation Software – Introduction.

Proteus Tutorial – Light Emitting Diode (LED) and Bar Graph Display – [Link]

Maximize the Energy from Long-Life Batteries



Battery lifetime is a key consideration for the development of the wireless sensor nodes that will populate the Industrial Internet of Things (IIoT). In many applications, the sensor nodes will need to be installed in locations that are difficult to reach let alone service. The sensor nodes need to be autonomous in terms of energy because it is too costly and difficult to run power lines to them or to have maintenance workers replace batteries regularly.

Maximize the Energy from Long-Life Batteries – [Link]

How to Interface Flux Sensor


This tutorial is going to teach you the basics on using Flux Sensor:

It is a flex sensor which is 2.2 inches in length. This sensor works by bending the sensor itself. As the sensor is being flexed or bent, the resistance across the sensor increases. The greater the angle of bending, the greater the resistance. This can be tested with multimeter. The resistance of the flex sensor changes when the metal pads are on the outside of the bend (text on inside of bend).

How to Interface Flux Sensor – [Link]

An Introduction to LiPo Batteries


Average Man Vs Raspberry Pi has a handy article on LiPo batteries.

LiPo batteries – to fear or not to fear? Up until very recently, I was petrified.

Whilst most other competitors at Pi Wars 2015 were happily using this angry and volatile battery technology, Average Man over here was assuming he was playing it safe using heavy NiMH battery packs in AverageBot.

I was first introduced to LiPo (‘Lithium Polymer’) batteries during my days playing with RC cars. At that time they seemed to have the label of “an advanced new battery technology that needs expert care or they’ll blow your face off“. That was enough to put me off, I’m far too pretty.

Fast forward many (I won’t say how many) years and LiPo is commonplace –  the world seems to have forgotten how dangerous these little 3.7V packs are – or maybe the technology has improved?

An Introduction to LiPo Batteries – [Link]

Fluke 15B+ Digital Multimeter Upgraded with ESP8266


SpritesMods has a 5-part write-up that shows how to add wireless connectivity to a Fluke 15B+ digital multimeter

All in all, I feel like I have succesfully diversified my multimeter assortment. I have a Fluke 17B I can use for daily work so I can enjoy quick continuity testing and non-irritating power-off features, and I have the 15B+ as a very capable second multimeter, with WiFi connectivity to show trends and to allow for any device with a browser to act as a remote display. It’s a shame I couldn’t figure out more of the way the main multimeter chip works to get direct access to the display, but the PWM-trick I did to show the IP-address is an alternative that is workable. Here’s a demonstration. As you can see, the multimeter has the IP of, and that’s what I enter into the browser.

Fluke 15B+ Digital Multimeter Upgraded with ESP8266 – [Link]

Basics of the I2C Communication Protocol

Introduction-to-I2C-Single-Master-Single-Slave talks about the I2C protocol, it’s use and it’s advantages and disadvantages.

I2C combines the best features of SPI and UARTs. With I2C, you can connect multiple slaves to a single master (like SPI) and you can have multiple masters controlling single, or multiple slaves. This is really useful when you want to have more than one microcontrollers logging data to a single memory card or displaying text to a single LCD.

Basics of the I2C Communication Protocol – [Link]