Category: Electronics
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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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Benewake Launches NOVA20, a Tiny Solid-State LiDAR for Robots’ Near-Field Safety
Benewake has introduced the NOVA20, a solid-state linear LiDAR meant to cover the close-range blind spot around embodied AI and mobile robots. It detects objects from 5 centimeters to 1 meter away.
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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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Apple Announces HomeView, a $299 Smart Home Hub With a 7-Inch Touchscreen
Apple has unveiled the HomeView, a smart home hub designed to act as a control center for connected devices such as doorbells, lights and thermostats. Pre-orders open today, and it launches on November 13.
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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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FS1000A and XY-MK-5V – How they work – cheap 433MHz Arduino radio
The FS1000A transmitter and XY-MK-5V 433Mhz receivers are probably the cheapest options if you want to do any kind of radio transmission with Arduino. And many people assume that it will work in their application no problem. The truth is, that it’s not that simple. The way how whose 433MHz radio modules are made puts…
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Is 6S more efficient than 4S?
There is a popular opinion, a myth maybe, that drones powered by 6S LiPo batteries fly much longer and are much more efficient than their 4S counterparts. You know, lower current and lower KV motors need less current for the same torque. The problem with this opinion is that it’s only partially correct. Yes, the…
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What are TVS, the Transil Diodes?
We like to think that voltage in electronics is, if not constant, then at least it’s not going above the supply voltage. So if we apply 5V at the input of the electronic device, it will never go unintentionally above 5V inside. It is, however, not true. As soon as you add any type of…