ST-Link/V2 SWD-JTAG adapter

alexwhittemore  has posted a detailed tutorial how to make an adapter:  ST-Link/V2 SWD-JTAG adapter  The fantastic STM32 Discovery boards from ST Micro all come with an embedded ST-Link/V2 debugger onboard, including some jumpers to disconnect it from the target device for use as a standalone SWD debugger. Presumably, this is to allow for easy use debugging […]

Open source hardware GPIB USB Adapter

scasagrande shared his GPIBUSB Adapter rev3 in the project log forum: This past weekend I finally finished up the third major revision of my GPIBUSB adapter board. Major hardware changes include swapping the pull-up resistors for the proper GPIB line drivers, as well as swapping the FT232RL for the newer FT230X. There is a number of software […]

Open hardware USB to RS485 adapter

Ethan Zonca of Protofusion writes: While developing the Luma RS485-networked LED driver we discovered a need for a small and inexpensive USB to RS485 adapter. We designed an adapter with a FTDI basic UART chip (FT230XS) and an inexpensive TI differential receiver (SN75176). Our small selection of parts brings the cost down to just over […]

Using LTC1100 as precision voltage adapter

Kerry Wong wrote about building a precision voltage adapter using LTC1100: LTC1100 is a zero-drift, precision instrumentation amplifier. Unlike LMP8358, it does not offer programmatic gain setting (the 8-pin package), and the gain is preset at 100. But LTC1100 has several advantages over LMP8358. For instance, while the typical gain non-linearity for LT1100 and LMP8358 are quite […]

DIY adapter for flashing ATtiny84/85 with the Bus Pirate

@indigoid tweeted this picture of his DIY adapter for flashing ATtiny84/85 with the Bus Pirate: Very dodgy DIY adapter for flashing ATtiny84/85 via Bus Pirate. Shown w/ ATtiny85. No more jumpers! Get an assembled Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors.

Simple USB to UART adapter that works with 3.3V and 5V UART signals

The serial UART is a common interface used by many chips and devices. Ginpb designed a USB-to-UART adapter that works with 3.3V and 5V UART signals. The device is based around the FTDI FT232BL USB-to-UART IC with an added 3.3V power supply. The different interface levels are selected by an on-board jumper. Via the forum.

Universal PIC programming adapter

Development of the Bus Pirate PIC programmer involves testing a bunch of different chips. This $10 universal programming adapter from Sure Electronics will be really handy. This board doesn’t actually program any chips. It’s an adapter that accepts a lot of different 18-40pin PIC chips and connects the programming pins to a header. The ZIF […]

Bus Pirate JTAG

The Bus Pirate can be used as an ARM JTAG debugger with OpenOCD. Joby Taffey set up the OpenOCD/Bus Pirate tool chain, and used it to work with a Stellaris LM3S9B90 (ARM Cortex-M3). Get a Bus Pirate for $30, including worldwide shipping at Seeed Studio. Adafruit also has the Bus Pirate and probe cables in […]