Luca Dentella designed and built a USB stick powered by esp32-s2 chip, the esp32s2Stick: esp32s2Stick is a USB device based on the esp32-s2 chip by Espressif. Thanks to the presence of an USB OTG interface, it is possible to program the chip to act as a USB peripheral (mass storage device, CDC…) and to upgrade […]
Tag Archives: IoT
Cassette Pi IoT scroller
The Cassette Pi IoT scroller project @ kyliemander.com The Cassette Pi is a self-contained real-time notification scroller, all housed neatly inside a transparent cassette tape. A Raspberry Pi Zero is sandwiched between the two tape reels, retrieving Internet of Things notifications from the fabulous IFTTT service, delivered almost instantly to the Pi via an Adafruit.IO […]
DIY IoT garage door opener
Ludzinc wrote a series of posts detailing his IoT garage door opener. See the full post on Ludzinc blog.
Build your own IoT/MQTT node for less than $2
Albert David writes, “This blog explains how to use ESP-12F module without the need of a base board but with minimal set of components.” See the full post on his blog.
trigBoard – Ultra low power ESP8266 IoT platform
Kevin Darrah writes: The trigBoard is an IoT project that does one thing – it pushes you a notification triggered by a digital input. Well, it’s much more than that, but this is the inspiration. I wanted to design a WiFi board that essentially sleeps most of its life, but when that door switch, flood […]
App note: How a SIMO PMIC enhances power efficiency for wearable IoT designs
App note from MAXIM Integrated on very compact PMIC using only single inductor to drive three independent switching regulators. Link here Small form factor and minimal power loss are key criteria for internet of things (IoT) hardware, particularly wearables. Meeting these criteria typically involves some tradeoffs. For example, to meet a specific power consumption goal, […]
Povon home energy monitor part 1, 20 channel system
Coyt Barringer documented his home energy monitor project called POVON. This first part of a series will detail the 20 Channel sub-metering hardware: Our initial goal was to monitor power consumption in different parts of the house, and we quickly realized every household circuit would need to be monitored. After some research, small clip on […]
uMesh – A self-contained, battery operated ESP32 module
Jarrett published a new build: I’ve been working on an ESP32 module. Part of the problem I’ve been seeing with inexpensive IoT dev boards, is that the design around the power system hasn’t been very good. Here’s my attempt to fix that. This is a battery-ready module with a proper lithium battery charge circuit, lithium […]
Wyostat: Open source Thermostat Pt. 1
Kevin has been working on building his own thermostat, that is available on github: Does the world need another connected thermostat? When my thermostat went on the blink last winter, I looked at Nest, and Ecobee, and the other me-too thermostats, and I decided I would rather build my own. More details at baldwisdom.com.
Ethernet Relay board
Boris Landoni from Open Electronics writes about a new open source project Ethernet Relay board: The project we are introducing in this article wants on to take on that task by creating, through dedicated connections, the possibility to remotely control your entrance gate, your fish tank, the garden lights, the watering system and so on, […]
App note: Workflow for an IoT product
ON semiconductor’s IoT device development process. Link here (PDF) In this application note a complete list of process steps is described in order to develop a specific system in the IoT environment. In order to make the description more practical the PIR sensor alarm example is used.
YouTube channel IoT view counter
Kenneth Finnegan built this YouTube channel IoT view counter, inspired by Becky Stern’s IoT counter: I’ve wanted an Internet connected read-out for some time now, inspired by the awesome shadow box IoT projects Becky Stern has been doing (weather, YouTube subscribers). I’m certainly not to the same level of packaging as her yet, but I’ve got […]
AD9834 and the IoT beacon
m0xpd writes: I’ve been playing with a new RF generator for the IoT beacon… Actually, I do myself a disservice, because I’ve done rather more than just play with the RF generator. First, I’ve replaced the little USB to serial dongle which I used to program the original system and built a complete interface, using the […]
Building a low cost wifi camera
Johan Kanflo designed a Esparducam board and built a low cost wifi camera with an Arducam Mini and a ESP8266 Wifi module: Sometime ago I came across the Arducam Mini which is quite a nice camera module from UCTronics. It is a small PCB with a two megapixel OmniVision OV2640 sensor, an interchangeable lens and an FPGA to do […]
Adding a USB power port to a switch for IoT
Jesus Echavarria wrote a how-to on adding a USB power port to a switch: I want to start some projects with Arduino and IoT, so the first things I need is an Arduino board, an Ethernet shield and a switch to connect it to the net. Also I need a power supply for the Arduino board, […]
Control your Arduino over the Internet using Blynk
John Boxall from Tronixstuff has written an article on using Blynk with Arduino: There are many ways of remotely-controlling your Arduino or compatible hardware over the Internet. Some are more complex than others, which can be a good thing or a bad thing depending on your level of expertise. Lately we’ve become more interested in this topic […]
Soldering iron + Nodemcu = IoT device
Vegard Paulsen blogged about his soldering-iron #IoT project: My trusty old soldering-iron recently got an upgrade! With the help of a NodeMCU. a RGB-LED it now reports the set temperature to the #IoT Thingspeak.com server through WIFI. It also sends me Prowl messages on my Iphone when I forget to turn it off. It all […]
Moteino IoT sprinkler controller automation
Felix of LowPowerLab writes: Another node type is now available on the Gateway automation interface: a sprinkler controller. This is achievable through a board I designed to be able to control many outputs. I call this board IOShield and it features two 74HC595 serial to parallel shift registers. The IOShields are daisy chainable and can […]
Power Meter pulse logger with ESP8266 running NodeMCU
Patrik Thalin writes: This device is installed in my home to monitor the usage of electricity. It counts the pulses from the meter and produces a log file with number of pulses and a time stamp that can later be analyzed. The hardware is quite simple. The NodeMCU development kit board with an ESP8266 running […]
IoT with ESP8266 + NodeMCU firmware
@PixelatedPic tweeted, “IoT with ESP8266 + NodeMCU firmware and couple of Lua :) its alive!”