All Projects of Christoph

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Betaflight doesn't support the H725 yet, but we have hardware with that chip. Let's try to create a new target, and take notes on the way.

Bringing up a new Betaflight target: STM32H725/735

I've assembled many dense(-ish) PCBs with small components (down to 0201) during the last three years. A summary.

Assembling dense SMD PCBs - lessons learned

I took down avrbeginners.net - the files are still here!

avrbeginners.net vault

A tiny GNSS + Magnetometer board for quadcopters

HypaLoc

I need a dual power supply for one of my projects, so I built a USB dongle around an off the shelf DCDC converter

Isolated +/- 5V power supply USB dongle

An active scope probe with high-ish bandwidth and very low input capacitance

DIY 1.3 GHz FET Probe

I'll assemble a PCB with a couple of very small components every week and track the effect of moon phase on tombstoning.

Effect of moon phase on tombstoning

I needed a differential probe for BLDC motor ESC development and adapted Bud's design for my needs

A 1x, 100 MHz, 35 V common mode diff probe

A ceiling-mounted ikea table, with dimmable LEDs and a bunch of small lamp shades to show time.

IKEA LACK Table Lamp Clock

Since I've got a lot of my stuff in an IKEA IVAR rack, I decided to take the rack to the next level.

IVAR, the hack rack

I don't need an FPGA for anything but the fun of experimenting with it.

FPGA dabbling

A board for measuring temperatures with thermocouples, built around an MCP3428.

Quad thermocouple board

Another vapor phase reflow oven - the successor of #vapsy.

Vapsy++

One of my designs needs a soft power button with sense output. I'm posting my design here to be reviewed and improved.

Soft power button with sense output

The "High Definition Earth Viewing" experiment onboard the ISS runs a few cameras, but not always. Let's find out when video is available!

ISS HDEV image availability

An ESP-01 based thermal printer. Could be used for many things; I decided to create a shopping list printer with a simple web interface

Thermal Printer for shopping lists

uGFX was written for use with makefiles. Using it in arduino is possible with minimal effort, though. Here's how.

using uGFX in Arduino

3D accelerometer with SPI, I2C and 3 ADC inputs

LIS3DH breakout board

1.8...6V to 15V (up to 28) step-up converter board

TPS6104x breakout board

1.8...5.5V to 1.2...5.5V step-up/down converter board

TPS63036 breakout board

A tiny vapor phase reflow oven

vapsy

Projects Christoph contributes to

The 2015 Hackaday Prize

DIY System on Chip based on FPGA, priced below 5 USD

DIPSY

antti-lukats Antti Lukats

[ an open-access peer-reviewed journal ]

Hackaday Journal of What You Don't Know

aleksandar-bradic Aleksandar Bradic

A DIY oscilloscope probe to dig small differential signals embedded in high common mode voltages.

A 10X 100MHz Differential Probe

bud-bennett Bud Bennett

The 2015 Hackaday Prize

DIPFORTy1 "Soft-Propeller" Zynq-7, Dual CortexA9+ FPGA DIP40 Parallax Propeller I compatibles footprint

Soft Propeller

antti-lukats Antti Lukats

The chatroom about RPi projects, issues, contests entries and more

Raspberry Pi chat

sophi-kravitz Sophi Kravitz

The 2015 Hackaday Prize

DIPSY-EPT Emulator and Programme Tool - Open Source Hardware for Open Source FPGA Toolchain

ICEd = an Arduino Style Board, with ICE FPGA

antti-lukats Antti Lukats

There's a Hack Chat tomorrow where we'll all be getting MQTT up and running - join me in setting up a guide ;)

MQTT learnalong

sophi-kravitz Sophi Kravitz