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Atmega128RFA1 Zigduino random number for unique eui64
Why not use the Atmel-derived function radio_get_trx_state and radio_set_trx_state, which includes the appropriate delay_us for the state transitions? Google will find them...
Thursday, 12 November 2015 - 22:06
Atmega128RFA1 Zigduino random number for unique eui64
Likely that delay is optimized away unless delay is declared volatile.  Have you confirmed from the data sheet that TRX_STATE can transition to RX_ON from every other...
Thursday, 12 November 2015 - 12:28
Atmega128RFA1 Zigduino random number for unique eui64
  The two random bits from PHY_RSSI worked with my 128RFA1.  Don't know what that struct is, are you extracting the correct bits? What does full register contain?...
Monday, 9 November 2015 - 23:26
How are you creating IoT device unique identity for cloud connectivity?
Amazon sells US$5 buttons that reorder specific items through wifi: http://www.theatlantic.com/techn...   They used to give them away free, now the button price is returned...
Thursday, 8 October 2015 - 18:00
ATmega128rfa1 sleep&wake up with timers
Contiki has both interrupt and non-interrupt sleep in the AVR code base for the Raven, and maybe for the 128RFA1  But it may not have been included in what you are looking at...
Thursday, 8 October 2015 - 17:34
4.2V on 5V power regulator
I suspect the question is, can you charge a 4.2 volt battery from regulated 5 volts. If it's a lithium battery that can cause a fire at any future time in the life of the cell....
Tuesday, 22 September 2015 - 16:45
AC Powered LED Pilot Light
Note UL approval requires a large copper-free gap between high and low voltage traces on a printed board. The high frequency transformers in wall-warts bridge the gap by having...
Friday, 18 September 2015 - 21:47
Testing RF module
Get a cheap RF scanner based on Software-defined Radio to see the tx and also measure its strength above the background RF at that frequency.   Cheap USB RF tuner, 25MHz-...
Monday, 14 September 2015 - 21:17
Connecting many AVR based ethernet devices to local network
Yes unique EUI48 or EUI64 (mac address) is needed.  There is a standard way to map them into ipv6 addresses, don't know about ip4. Given unique device identifiers, DHCP is an...
Wednesday, 9 September 2015 - 21:24
The best way to get 5V for supplying ICs
vertamps wrote: Your micro controller may run fine and slow, but fast enough on your 3.15v battery. And there are advantages to running it at the lowest possible voltage, e.g. 2...
Wednesday, 9 September 2015 - 21:14
Atmel Studio stopped seeing AVR Dragon; possibly Win 10 update related
I had a problem with Vista when changing the drivers associated with a particular VID/PID. Windows cached a driver for each particular USB port so even removing the device and...
Friday, 4 September 2015 - 17:17
Problem with clock accuracy.
You can phase lock a high frequency CPU clock to the 32kHz crystal. Run a timer off the CPU clock, interrupt every millisecond off the crystal or so and adjust OSCCAL based on the...
Tuesday, 11 August 2015 - 02:53

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