Leon Anavi

Using a MacBook for work is like running a race with a Rolex: shiny and expensive, but not the right tool for the job.

🇧🇬🇲🇽 I am proud that my open-source mechanical keyboard ANAVI Macro Pad 10 inspired Hrvoje Matosic from Mexico to fork it and to make his own version for better interaction with AI assistants. 💡🌎 It is amazing how open-source allow people to work together and share ideas!

🚀 The @oshwassociation Open Hardware Summit 2026 started this morning with a blast! 🎉 The gift bag is amazing with gadgets from my favorite @Olimex, @seeedstudio, @beagleboardorg and many more ✈️ The fantastic RISC-V PC kit is from Plovdiv, Bulgaria 🇧🇬 #oshwa #opensource #riscv

Learn more at: crowdsupply.com/anavi-techno…

🛠️I created an open-source add-on board that brings TPM 2.0 to Raspberry Pi single-board computers 🔐 ANAVI TPM 2.0 connects to the SPI pins, enabling disk encryption, device authentication, and random number generation 🇧🇬 Made in Plovdiv, Bulgaria. Order now from Crowd Supply

🖨️ ePaper / eInk are ultra-low power, sunlight-readable, but slow refresh, limited colors and expensive 🎥 My new video shows the same 4.2" ePaper on two different controllers: @seeedstudio EE04 with XIAO ESP32-S3 and a breakout board with XIAO ESP32-C3 youtu.be/0TdbwdlP88w?si=C_rd…

🎥 Watch my video to explore XIAO ESP32-C5 and get started with it using the Arduino ecosystem: youtu.be/ddaMC-bcjrY?si=jNkW…

🚀 XIAO ESP32-C5 is the first @seeedstudio IoT module with dual band WiFi 6 at 5GHz and 2.4GHz. 🔗 Also supports Bluetooth 5 LE, Zigbee and Thread for Matter. ⚙️ Comes with 240 MHz 32-bit RISC-V MCU, 8MB Flash and 8MB PSRAM. ⬇️⬇️⬇️

🔩 As of the moment about 30 sensors are supported by the Meshtastic firmware and they are automatically detected by their I2C address at start-up. 🎥 The process is straightforward, and I covered all the steps in a video tutorial: youtu.be/zhS_2MZbjzM?si=usNI…

⚙️ After cross-compiling the custom firmware.uf2, I entered DFU mode and flashed it onto the XIAO nRF52840. 🌡️This enabled me to use my BME280 I2C sensor for temperature and barometric pressure on pins D6 (SDA) and D7 (SCL) instead of the standard hardware I2C pins.

📦 By default Meshtastic firmware supports only the L76K GNSS module as an add-on for this kit but I wanted I2C sensors. 🔧 To add an I2C sensor and enable the telemetry module for env monitoring, I built the firmwareusing PlatformIO with the seeed_xiao_nrf52840_kit_i2c config.

🛰️ I have been diving deeper into my hobby project with Meshtastic. This is the open-source, off-the-grid, decentralized communication network built on #LoRa. 📡 I initially set up two nodes using the @seeedstudio XIAO nRF52840 and Wio-SX1262 Kit. ⬇️ ⬇️ ⬇️

Here is the video with step by step instructions: youtu.be/lOhg--tFEUg?si=E4xu…

📡 Just launched a few Meshtastic nodes in Plovdiv 🇧🇬using the XIAO NRF52840 & Wio-SX1262 Kit from @seeedstudio 🛰️ Meshtastic is for off-grid, LoRa-based, decentralized communication 🎥 Watch my video: unboxing, flashing firmware and setup from a smartphone over Bluetooth

I designed this two-layer printed circuit board using the open source tool KiCad on the Ubuntu Linux distribution 🐧😎

💡 PocketBeagle 2 is an open-source hardware single-board computer featuring Texas Instruments AM6254 Arm SoC 🎥 I created a getting started video guide, where I flashed and booted a Debian 12 (bookworm) image with Linux kernel 6.12 from a microSD card: youtu.be/uRR0n7T9tIY?si=5Te5…