Tag: ESP32
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Round ESP32 Display Turns Into a Smart Kitchen-Style Timer
A open-source countdown timer built on a round touchscreen CrowPanel shows how a rotary dial can make setting time intuitive.
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ESP32-C5 Used as a 5 GHz Analog FM Video Receiver for Drones
A maker known as Twotoz has built a receiver for analog drone video around an ESP32-C5, putting the chip’s recently revealed software-defined radio abilities to work.
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After the ESP32, the LR2021 LoRa Chip Is Found to Hide an SDR Too
Only weeks after a hidden baseband mode turned the ESP32 into a software-defined radio, a similar capability has been reported in the LR2021 LoRa chip.
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ESP-SDR Gains Transmit Support, Moving Beyond Listen-Only Use
A developer known as [marble] has released early ESP32 firmware that lets the chip’s 2.4 GHz radio transmit as well as receive, extending last week’s listen-only software defined radio hacks.
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Building an ESP32‑Based Incident Light Meter for Photography & Cinematography
Incident light meters are indispensable tools in photography and cinematography. They measure the light falling onto a subject rather than the light reflected from it, giving far more reliable exposure readings—especially in scenes with dark backgrounds, bright highlights, or high‑contrast lighting. Commercial incident meters cost anywhere from €200 to €500. That’s a lot for someone…
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The Hidden Trap Inside ESP32‑C3 Super Mini Boards from AliExpress
Why Two Identical‑Looking Boards Can Be Completely Different The ESP32‑C3 has quickly become one of the most popular microcontrollers for DIY electronics, IoT projects, and low‑power wireless applications. It is small, efficient, inexpensive, and fully compatible with Wi‑Fi and Bluetooth. Naturally, the market is full of tiny ESP32‑C3 development boards—especially on AliExpress—sold at unbelievably low…
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Meshtastic: Off‑Grid Communication for Modern Times
What would happen if tomorrow cell phones and the internet went down? Whether caused by a datacenter fire, natural disaster, terrorist attack, or even war, losing communication would leave us blind and disconnected. For those of us living in regions close to geopolitical tension—like Poland, right next to Ukraine and Russia—this isn’t just a thought…
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How to use stepper motors with Arduino
Stepper motors are the workhorse of modern automation and mechatronics. You want something to more and move precisely how much wanted it to move? You use a stepper motor. This is why, we use steppers in cars, robots, all kinds of automation, 3D printers, CNC machines. You name it. The main difference between a stepper…
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LILYGO T5 4.7-inch E-paper ESP32 development board
One of the biggest advantages of ESP32 development boards (without even counting the speed, flash size, WiFi, Bluetooth, and two cores) is that they come in a variety of shapes and sizes: bare boards, with OLED, with color LCD, with LoRa chipset, with GPS modem, etc., etc. And finally, you can get them with an…