Leon Anavi

Software engineer and an open source enthusiast

[Anavi Technology @AnaviTechnology]

🚀 ANAVI I2C TPM 2.0 is coming soon to @crowd_supply
🔐 Compact hardware TPM 2.0 security for #RaspberryPi over I2C
🆚 See how it compares with our SPI-based ANAVI TPM 2.0
📢 Read the blog post and subscribe to be first to know when we launch
https://t.co/ZQFYQSlZA9

[Leon Anavi @leonanavi]

🇧🇬🇲🇽 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!

[Anavi Technology @AnaviTechnology]

🍴Forking open source hardware right: from ANAVI Macro Pad 10 to MATOSIC MACROPAD.
🤖 Our open-source mechanical hardware keyboard with #RaspberryPi RP2040 MCU inspired Hrvoje Matosic to fork it and create a custom keypad tailored to his workflow for Claude AI assistant.

[Leon Anavi @leonanavi]

🚀 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

[TuxCon @TuxConMobi]

🌐 Възможно ли е да изградите собствен #IoT сървър за около 20 евро, без облачни услуги и без сложни настройки?
👨‍💻 На #TuxCon 2026 Цветан Узунов от @Olimex ще представи open source IoT решение, базирано на #OpenWRT и #ESPHome.
📅 Очакваме ви в Пловдив на 16-17 май!

[Leon Anavi @leonanavi]

Learn more at: https://t.co/soAs27OeHR

[Leon Anavi @leonanavi]

🛠️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

[Leon Anavi @leonanavi]

@baremetalx Thanks for sharing :)

[Leon Anavi @leonanavi]

🖨️ 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
https://t.co/1Duq5RE64J

[Leon Anavi @leonanavi]

@BlagoDonchev @Olimex Actually, the initiative has already been scaled. There was a similar workshop with Olimex RVPC at MG Pazardzhik at the end of November: https://t.co/DpWxPnpI5G
Now the guys from Olimex are preparing a workshop at Brussels during FOSDEM: https://t.co/nVmWFKEy4g

[Leon Anavi @leonanavi]

@vrstanchev Haha, thanks for watching my video. Let's hope not too fatal! Just a bit of fun with Wayland and Weston on Raspberry Pi 5 😅

[OLIMEX Ltd @Olimex]

This Saturday more than 50 kids from the High School of Mathematics OMG "Akademik Kiril Popov" in Plovdiv soldered their first RISC-V Open Source hardware retro like computer RVPC and played TETRIS on it https://t.co/8ycmXW8k4B #riscv #retrocomputing #workshop #soldering

[Leon Anavi @leonanavi]

🎥 Watch my video to explore XIAO ESP32-C5 and get started with it using the Arduino ecosystem:
https://t.co/RfaFJku4zG

[Leon Anavi @leonanavi]

🚀 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.
⬇️⬇️⬇️

[Leon Anavi @leonanavi]

🔩 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: https://t.co/7tJCvstrJv

[Leon Anavi @leonanavi]

🛰️ 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.
⬇️ ⬇️ ⬇️

[Leon Anavi @leonanavi]

⚙️ 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.

[Leon Anavi @leonanavi]

Here is the video with step by step instructions:
https://t.co/XbhdH1gi81

[Leon Anavi @leonanavi]

📡 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

[Leon Anavi @leonanavi]

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

[Anavi Technology @AnaviTechnology]

🔐 ANAVI TPM 2.0 is a compact add-on board for #RaspberryPi powered by the Infineon Optiga SLB 9672 chip.
🔌 It connects via the SPI interface on the Raspberry Pi GPIO header.
🔜 Coming soon at @crowd_supply
https://t.co/gsV2PNus3T