Breakout board for the 44pin QFN ATxmega microcontroller

Brendan built a breakout board for the 44pin QFN ATxmega uC. He designed the board to have a USB connection and a 500mA 3.3V power supply. 30 of the pins were broken out to two rows of 0.1” pinheaders on either side of the board. You can download the source files from GitHub. I recently […]

Silabs C8051F320 breakout board, intro to 8051s

Zeta designed a breakout board for the Silabs C8051F320 microcontroller. A nice feature of this uC is that it doesn’t require external crystal to support full-speed (12Mbps) USB. The C8051F320 is a nice chip it needs only 4 Capacitors to work. It comes in a hand solderable QFP32 package (0.8mm pitch). It has an internal […]

Breakout board for 18pin PIC16F microcontrollers

Raj made a breakout board for 18pin PIC16F microcontrollers. There are two tact switches on the board: one for reset and other for user input. Similarly, there are two LEDs: one for power-on indicator and the other for user output. The input tact switch and the output LED can be connected to RB0 and RB1 […]

PROTOTYPE PREVIEW: PIC24FJ64GB/A002 breakout board

Earlier this week we prototyped a transistor tester circuit on a breadboard. We wanted a start with a full microcontroller and power circuit, ready to go, Arduino-style. All the breakouts we had on hand were a pain to use. Most obscure the prototo area and many were just too big. Inspired by Shaos’ nedoCPU-32, we […]

nedoCPU-32 PIC32 breakout build and review

Schazamp received a nedoCPU-32 32bit PIC breakout board from Shaos. He built stuffed it and got a simple “blink LED” firmware to run on it quickly. This is a nice board, and I’m looking forward to messing around with it. It might be a good starting point for trying to adapt the chip-kit Arduino bootloader […]

Near field communication TRF7970A breakout board

Benjamin wanted to use the Bus Pirate with various near field communication protocols, so he designed this breakout board for the TRF7970A NFC chip. It has a 13.56Mhz on-board antenna, and a optional SMA antenna connector. Other devices can also interface with this board, all the IO pins of the IC are brought to a […]

nedoCPU-16: PIC16F87X breakout board

Here is a breakout board for the PIC16F87X microcontrollers. It has a onboard 5V power supply, a 20MHz crystal, and a reset button, while all the IO pins have been broken out into a single row header, so its easy to interface with a breadboard.The UART and ICSP programing header have been broken out on […]

nedoCPU-32: Breakout board for PIC32s in DIP packages

Shaos is making a breakout board for PIC32 microcontrollers in DIP through hole packages. He based his design on his previous project the nedoCPU-16, a breakout for the PIC16F870 uCs. There is a 3.3v power supply onboard along with all the bypass capacitors required for the PIC32 to function properly. As an added feature he […]

XC95144XL breakout boards

Jason decided to make breakout boards for the XC95144XL CPLD. A voltage regulator along with bypass capacitors are placed on-board. He provided a oscillator, connected to a global clock pin as well. The board is built with a single row header so it can be used with a standard bread-board. There are two additional dual […]

XC9572XL breakout board: Frequency counter

Jason implemented a frequency counter on an XC9572XL CPLD. It uses a 1Mhz clock to count the duration of the input signal pulse, and shows the output on a 6 digit display. Initially he had to use additional 7400 logic ICs to convert BCD output from the CPLD to the 7-segment displays. With some tweaking […]

PROTOTYPE: ENC424J600 breakout board

We forgot to release this stalled prototype during the Seeed Studio holiday. We put a lot of work into these projects, but they’re still missing major components and testing. If an abandoned project sparks your interest, we may have PCBs to get you started. This is a breakout board for Microchip’s ENC424J600 100/10 Base-T Ethernet […]

Free PCB Sunday: FT2232H breakout board

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week we’re giving away two […]

Free PCB Sunday: FT2232H breakout board

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week we’re giving away two […]

Free PCB Sunday: FT2232H breakout board

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. Happy New Year! This week we’re […]

Free PCB Sunday: MMA7455L breakout board

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week we’re giving away two […]