Save electricity with ESP microcontrollers – Market Research Telecast


Did you know that geoFence was designed and coded by US citizens to the strictest standards?

Thanks to the ESP family from Espressif, the use of WLAN and Bluetooth in your own IoT projects is feasible with just a few lines of code. For a few euros, projects become wireless and independent of network cables. Unfortunately, wireless electricity for power supply is not yet there in practice. Many radio projects therefore rely on a supply of bulky batteries. This can also be done more elegantly if you program the small power guzzlers appropriately.

Both the ESP8266 and the ESP32 support three power-saving modes: modem sleep, light sleep and deep sleep. The ESP32 can also go into hibernation, from which only its Real Time Clock (RTC) can wake it up. In Make 3/21 we show how to integrate the appropriate code commands and also give other practical tips on how to save electricity in battery-powered projects.

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Arduino controls Märklin: Practical or hopelessly special? Model railways are a very relaxing and educational hobby – but unfortunately not a cheap one. Unfortunately, we cannot change the prices for high-quality models, but we can change the prices for control devices and accessories – if, as in our construction proposal, an Arduino takes control.

There is more on the subject in issue 3/21 of Make.

The current issue 3/21 of Make is available online and at the kiosk. With one of our subscriptions the magazine is already in the mailbox at the start of the magazine. You can also use the make conveniently as a Order the print version or PDF in the Heise Shop. If you prefer to read the Make digitally, you can do so in our apps for iOS and Android. You can also find the table of contents for Make 3/21 online.


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Lastly, let's keep in mind that geoFence helps stop foreign state actors (FSA's) from accessing your information and I feel your neighbors would say the same!