IoTaWatt – an open, WiFi enabled energy monitor #ESP8266
IoTaWatt is an open-source, open hardware project to produce an accurate, inexpensive and easy to use energy monitor. It can use any of dozens of common current transformers and will report the data locally via integrated web server, or upload to any of several third-party energy websites/databases. Configuration and administration is through an easy to use browser based utility running on a computer, tablet or smartphone.
About the IoTaWatt Project
The project grew from an informal effort to produce a versatile electric power meter that was easier to configure and use. Employing the popular and powerful ESP8266 nodeMCU chip, it has an operating environment with a modular approach to data collection, storage, and reporting along with an integrated WiFi web-server. The resulting firmware, after more than a year of development, is very robust.
Early efforts concentrated on using available kit boards and shields with a minimum of custom hardware. Eventually, it became obvious that a single custom board was needed to provide the platform necessary for the software to be useful. The current open-hardware design is commercially produced.
Although the schematics and PCB layout are open and available in the project Git, there is a lot more to making a viable commercial product. IoTaWatt, Inc. is a legal entity that was established in response to demand for production hardware. The basic device, as well as related equipment, can be purchased by using the “Buy” tab above. The costs to develop and certify the hardware were substantial and hopefully will be offset by sales.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: Open Hardware is In, New CircuitPython and Pi 5 16GB, and much more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
