|flabbergast 0f16f5d45c||1 year ago|
|ft231x-end||1 year ago|
|kb45p||4 years ago|
|l0x1-rf69-devboard||1 year ago|
|l0x1-sensor-board||1 year ago|
|msp430g2553_sensor||1 year ago|
|pocketb_rfm69||1 year ago|
|serplus-batshield||1 year ago|
|stm32_qfp48_breakout||1 year ago|
|swd-to-wires||1 year ago|
|.gitignore||4 years ago|
|.gitmodules||3 years ago|
|LICENSE||5 years ago|
|README.md||1 year ago|
The controller MCU is STM32F042K6T7 - 32kB flash, 6kB RAM, DFU bootloader in ROM, LQFP-32 package. The BOOT0 pin for entering the bootloader on power up is brought out to a pushbutton on the bottom side of the PCB.
A.K.A. the bat board. A Teensy-sized breakout for STM32* MCUs in QFP48 package. Tested with STM32L052CxTx, STM32F072CxTx, STM32F103CxT6. Please see the main page (the bat board) for more information, documentation and how to make yourself and/or order one of these.
This is a simple shield for the bat board. The main purpose is to turn a bat board into an USB-to-serial device, but there are a couple of extra things (button, RGB LED, ...). Please see this page for documentation, some pictures and links to relevant firmware.
A half-mounted Pocket Beagle cape with RFM69 radio, atmega328p, RTC, atsha204, a few status LEDs, and a JST connector for Pocket Beagle backup power. See this page for some photos and a little documentation.
A small “USB-to-serial” board with FT231XS chip. It has the “standard” 6 pin header, with DTR and RTS like USB BUB III, so good for Arduino-like stuff and also some ARMs. The sligtly unusual features are:
This is a very old and very small “breakout” of the JTAG-ish 2x5 1.27mm header to eight 2.54mm holes, with the outer row of 4 has the SWD pins.
My attempt for something like jeenode zero, but with TSSOP-20 packaged STM32L041 (or L031 - the only difference is L041 has AES built in). It can be used for actual sensor deployment, but it was just a quick design to try the MCU out. So all the pins are out, some of them multiple times, no attempt at making it “as small as possible”. Has a LED, BOOT+RESET buttons, RFM69CW footprint, voltage regulator and “standard” 6 pin UART jnz-like header. And a few solder jumpers: for connecting RF69’s IRQ to a pin (which supports EXTI), for disconnecting the regulator from the power net (so that a potential battery doesn’t try to back-feed the regulator), and for disconnecting the boot button from an extra pin. Because there is space on the PCB, it is (hopefully) self-documenting.