esp32

Dustin Watts developed FreeTouchDeck software to interface with Windows, macOS, Linux computers and boards over Bluetooth LE using an ESP32 board connected to a touchscreen display. So far, he used off-the-shelf parts,...

I have been meaning to play around with MQTT for some time now, and finally decided to take the plunge one evening last week. I had three cheap home temperature and humidity sensors, and was bothered that they often...

Lilygo TTGO T-Watch-2020 is a thin, ESP32 smartwatch programmable with Arduino that was introduced last year. The WiFi and Bluetooth-connected watch is equipped with a 1.54-inch LCD capacitive touch screen, a Class-D...

One of the most interesting features of the esp32-s2 chip by Espressif is the presence of an USB OTG (USB On-The-Go) interface.  Thanks to this interface – and the use of the TinyUSB library – it’s possible to...

One of the most interesting features of the esp32-s2 chip by Espressif is the presence of an USB OTG (USB On-The-Go) interface.  Thanks to this interface – and the use of the TinyUSB library – it’s possible to...

Last week, I wrote about the Pebble Board, an nRF9160 based LTE-M and NB-IoT GPS tracker board that connects with Thingsboard. I was soon informed about a similar solution based on Quectel BG96 and compatible with the...

We just got our hands on some engineering pre-samples of the ESP32-C3 chip and modules, and there’s a lot to like about this chip. The question is what should you compare this to; is it more an ESP32 or an ESP8266?...

As [Luuk Esselbrugge] explains in a recent blog post, his 2002 Volvo S60 had an optional GPS navigation system and backup camera that used a motorized display that would rise out of the dashboard when needed. His...

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Though kids today have an incredible knack for figuring out modern phones and tablets, there’s still something to be said for offering a simple physical user interface for little hands. To that end, [Martin...

If you’ve been trying out new IoT products, you would have known that ESP32 is a follow-up to the ESP8266. It is a low cost, low power system System on a Chip (SoC), created by Espressif Systems. Thus in this blog, we...

We’ve previously seen programmable, portable game consoles powered by Espressif Systems ESP32 processor with the likes of ODROID-GO or WiFiBoy32 both equipped with a 2.4-inch display, and design to play retro games or...

The Internet of Things has many applications including smart agriculture . A few months ago, I talked to a local shrimp farm owner who used Arduino and ESP8266 boards to monitor water and activate pumps only when needed...

The M5Paper is a small, programmable E Ink display that sells for around $70. It supports touchscreen input, WiFi and Bluetooth and has a battery, which means you could use the display to make your own eBook reader,...

The relatively popular Digital Equipment Corporation (DEC) PDP-11 16-bit minicomputers started selling in the 70s, and were still available in the earlier 90s. While being stuck in Europe due to COVID-19 restrictions,...

[WJCarpenter]’s gas water heater uses a small pilot light that needs to stay burning permanently to ignite the main burners as required. Four or five times a year, the pilot light goes out and needs to be manually...

One of the major choices a newcomer to the RC flying hobby must make is on the RC link protocol. To add the list of choices (or confusion) there is now a new open-source, low latency, and long-range protocol named...

Pebble smartwatch was introduced in 2012 on Kickstarter. The Bluetooth smartwatch came with an E-Paper display, would connect to your Android smartphone or iPhone to receive notifications or other info, and the company...