Most recent activity
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hi maple mini using diferent pin for usb enumeration controll.
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and I have released this micro board compatible with maple mini https://oshpark.com/shared_projects/J2aOvbKF
with stm32f103cbt6 this board maybe can run limited version of espruino -
@Gordon you have true this is no way. But I'm still have obsession by small PCB. My second attempt.
https://oshpark.com/shared_projects/S6astjvz
Edge header: i2c/uart (optional pull up), 2xDac,SD card, UART1 for bluetooth
Left edge only on tespoints signals for cc3000
Right wing nrf24l01
Battery, SWD,SCK, Reset on testpoins
Led on A0 PWM,
I think it should be compatible of espruino without changes.
I need now check for before ordering :)- adapter board with sdcard, bluetooth and maybe eeprom
- adapter board with sdcard, bluetooth and maybe eeprom
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@Gordon no, if you solder crystal is need use metalic usb A, then you blend wings on connector and solder to bottom pads. It is wery slim and compact. Do you thing that is possible create espruino for 072 chips? I can send you assembled board.
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hi, I designed small board with newest stm32f072cb crystall less usb, integrated all usb resistor
https://oshpark.com/shared_projects/7YeHJutX
rgb led
reset button
usb rom bootloader
on edge connector is spi,iic/uart,dac
but 072 is only 128kb flashI have tested one board, working dfu usb bootloader :-)
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Yes, I am Bobricius. Thanks for help. We will test your example on github. I completely forgot I signed up as Peter.
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I only have 6 pieces STM32F103RBT6. The next version will use more powerful processor. I am looking for a way to begin in arm because I wanted to make a board that would be compatible with maple and espruino = olimexino core . I'm a complete beginner in programing Arm. I still did not get the blinking led:) Espruino the largest support and multiply the examples I've seen . I'm obsessed with Build smallest development board but arm for me have awful lot of pins. It is a pity the espruino is so very hardware demanding, I like would like the option to use stm32f072cb, but it probably will not be possible: (, or any cpu in LQFP 48, or with USB host. but I understand, it is very difficult to maintain many hardware revisions alive.
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I admit to, but I do not have OLIMEXINO but my usb stick clone of this board.
https://www.tindie.com/products/bobricius/stm32-arm-arduino-maple-mini-or-espruino-compatible-with-uext-interface-and-stm32f103rbt6/Looks to be quite unusable toy :(
also led is on another pin