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Designed by S-March, dEEbugger is a multifunctional ESP8266-based keychain that could serve as a swiss army knife to electronics lovers. Powered via an USB port, it operates over a web browser interface and features several functions including oscilloscope with real-time peak detection, I2C and UART terminals.
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BME280 is a fully integrated environmental unit from Bosch that combines sensors for pressure, humidity, and temperature in a tiny 8-pin metal-lid LGA package of size 2.5 x 2.5 x 0.93 mm³. Because of its compact size, ease of use (BME280 supports standard I2C and SPI interfaces), and availability of supporting open-source Arduino libraries, BME280 is very popular among weather enthusiasts. We have seen its usage in our weather webserver project and standalone weather station tutorial before. This Instructable describes a similar weather station based on ESP8266 and BME280 and is solar-powered. The entire circuit is housed inside a 3-D printed enclosure.
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Another illustration of making an YouTube subscriber counter using ESP8266 and SH1106-driven OLED. The firmware is based on YoutubeApi.h and SH1106 library.
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ForEx is a cute little desktop widget designed by Stefan for displaying major foreign exchange rates and the time of different locations using ESP8266. The time zone references are fetched a bit complicated but this method works and deliver accurate results. Further it allows using the effective name of the city which makes easier to use. In a first step the coordinates of the desired city are evaluated using the API of openweathermap.org. This works by sending the name of the city in a format like “Sydney,au” to the API which will response with its coordinates. In the second step the
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This cloud-connected energy meter works in conjunction with the regular household power meter to provide detailed information about the electricity usage at home. Modern power meters have a LED blinking every time a watt-hour is used, the IEM detects these flashes using a interrupt, counts them, then the data is stored to the cloud. Usually power companies provide very rough electricity usage data, the IEM provides data with a minute resolution. Knowing the household electricity usage allows to extrapolate statistics and can give precise numbers about the costs.
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