CodeNSolder 
Ayan Pahwa
RSS FeedA tech flâneur, long on self-hosting, privacy-respecting tools, and everyday carry; dad of two, coffee nerd, and a constant tinkerer, trying to live a life driven by curiosity and many parallel expensive interests & hobbies
📌 Pinned Blogs
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How to use a Raspberry Pi as an SWD programmer with OpenOCD to flash the CircuitPython UF2 bootloader onto a Particle Xenon (Nordic NRF52840) board.
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Reverse engineering a Syska smart LED bulb by sniffing unencrypted BLE packets with Wireshark and Android HCI logs, then replicating the RGB control protocol using Linux Bluez tools (CVE-2017-18642).
Recent Posts
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Building a motorised 3D printed turntable using Adafruit M4 Feather and DC motor FeatherWing to create smooth 360° showcase videos of 3D prints.
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A weekend project: 3D printing an owl tea light with programmable NeoPixel LEDs, controlled by Adafruit Gemma M0 and CircuitPython with capacitive touch input for color cycling.
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Using CircuitPython with an ESP32 co-processor to build an internet-connected conference badge (PyBadge) with MQTT-controlled name display and NeoPixel RGB color picker via Adafruit IO.
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The clean way to set up a Raspberry Pi headless — drop a wpa_supplicant.conf and an empty ssh file on the boot partition to enable WiFi and SSH before the first boot, no monitor needed.
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A practical guide to managing project dependencies with Git submodules and Google's Repo tool, plus bonus advanced concepts — git remotes and cherry-picking for multi-developer open source workflows.