Axiometa on Instagram: "Controlling Neopixels without code. It is generally assumed that WS2812 / NeoPixel LEDs need a microcontroller. Precise timing, tight loops, and carefully written code. That is true in practice. But I was curious how much of that is actually required. At the protocol level these LEDs only care about pulse width. A longer high pulse is a one. A shorter one is a zero. The rest is just ordering and timing. So I tried driving them without a microcontroller. No firmware, no bi

Uptime Lab on Instagram: "Shall we check your Wi-Fi? ESP32-DIV, a multi-purpose wireless analysis tool based on the ESP32 microcontroller. This open-source project integrates multiple modules to cover a wide range of frequencies and protocols. ​Hardware specifications: Core: ESP32-S3 Display: 2.8 inch ILI9341 Touchscreen Connectivity: Wi-Fi and BLE onboard Expansion: NRF24L01 for 2.4GHz and CC1101 for Sub-GHz analysis Peripherals: IR transceiver and SD card slot for logging ​The device runs cust