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SPI data garbled at high speed
Hello,   i made a 4 layer custom PCB with 1 master MCU and 32 slave MCUs on. All the MCUs are Atmega3209. Basicaly the main MCU has 32 SS lines and activates each...
Wednesday, 31 July 2019 - 09:37
SIGFOX module
Hello,   i am working on a project that has to contain SIGFOX module. I am looking at one containing ATA8520-E, but on the product site:  https://www.microchip.com/...
Wednesday, 24 July 2019 - 11:54
AVR vs SAM power consumption
Hello,   i am preparing project where system has to do periodic analog measurement and send it to external circuit via serial and the whole thing is battery powered, so...
Friday, 19 July 2019 - 07:01
Fastest pin check loop
Hello,   i have to measure how long the pin remains on low. The value I read is not in time units, i only need arbitrary values to look for differences in values between...
Tuesday, 2 April 2019 - 13:51
Joining(or not) of signal and chassis(safety) ground
Hello,   i have an enclosed device which incorporates some 5V custom PCB circuits that control some relays and LEDs and also an IntelNUC mini pc that runs off a...
Tuesday, 19 March 2019 - 09:15
Most universally supported cortex debug/programming probe
Hello,   currently 90% of my work is done on Atmel/Microchip SAM MCUs so i am working whit Atmel-ICE probe tool. I also do some light works whit ST MCUs, but then i just buy...
Friday, 8 March 2019 - 09:17
Where to buy SMD 5050 leds
Hello,   i have started small production line and now i have to stop using LED strips (ineffective, expensive, low quality,...) and am palnning ot make my custom pcb for...
Monday, 28 January 2019 - 10:01
BQ2057 battery charger
Hello,   i developed PCB whit BQ2057 li ion charger. For the schematics, i selected application circuit from page 10 in datasheet, for 0.5A charge current. Now...
Wednesday, 22 August 2018 - 12:39
Erratic analog readings on SAM D21
Hello,   i created a custom pcb whit sam D21 mcu. I connected the Aref pin to GND via the 0,1uF capacitor and the VDD_ANA(analog VCC) via a ferrite bead (100 Ohm) to VCC...
Wednesday, 27 June 2018 - 12:17
Atmel ICE error 4109 on Arduino ZERO and custom board
Hello,   i finished project on Arduino Zero and now i made custom pcb. I COPIED the circuit from the Arduino Zero datasheet and diagrams, but now when i connect the Atmel ICE...
Monday, 18 June 2018 - 12:29
Arduino Zero via Atmel /ICEStudio
Hello,i am trying to connect my Arduino Zero through SWD to my Atmel studio. It was workign firn for about an hour, but now everytime i try to connect i get message:...
Friday, 15 June 2018 - 10:52
Near ideal transistor or similar on/off switch
hello,   i am measuring(whit 1s interval) a voltage point in a electro-chemical system, via an op amp configured as a buffer(voltage follower) since i need measuring...
Tuesday, 5 June 2018 - 07:31

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