开云体育

Gerald, Watch the MicroCenter website for Raspberry Pi's if you live near by you may be able to pick one up for a reasonable price. When they get PI's in stock the price is not inflated. A few

I do not want to hijack this topic so I will start a new one. /g/BITX20/message/101161 73 Evan AC9TU

I did a performance test with my sBITX DE running v2 software and could not run the sbitx code and the Chrome interface on the single Raspberry Pi 4.? That was after swapping out the 2G for a 4G RPi

Cheap too (4N25 $0.16 per 100). Jack, W8TEE

I prefer to use an optic isolator. A lot of protection in a small package.? Max?

Ah, a good spot. I wanted to check how fast the adc works. If you see, the pin 5 is being flipped on each iteration of the loop. So, I connected the pin5 to an oscilloscope to measure the time

Rafael, Exposing attin85 pins directly to external lines can be risky. It would be better to tie the tx_line (it goes high on transmit) to a 2n7000 gate and use the drain as an open / close ptt

Hi Ashhar and all, What does it mean this part of the code of the ATtiny85, I don't get it: -- ? if(flag == 1){ ??? digitalWrite(5, LOW); ??? flag = 0; ? } ? else { ??? digitalWrite(5,

If you don't want to use Raj option, other option is to use the ATTiny85 port 6 in order to have independent control (just send the info to the ATTiny85 via i2c). Rafael

I just discovered a kink in spectrum_update that was eating up the cpu. I will push out the changes to idle the cpu back to 40% on sbitx. - f wrote:

I'm really looking forward to this as my command line skills are somewhat limited. Joel N6ALT

Take the 12V from R10 upper side and feed to a 12V relay. Use the relay contacts as you want. The relay will isolate sBitx from your circuit. Raj

Farhan I am not sure about USB spec. The keyline output should go low during transmit to be used for transmit/receive switching of linear amplifiers and transverters. For keyline voltage and current

It is best not to tap this off the raspberry pi line. Perhaps, we can use the usb port to signal this? - f

We were ready to ship on monday. There were a few paperwork delays. We should ship in the next 24 hours. - f

Thanks for the detailed information. I know that the solution is always in the details. I noticed that the heat generating components are well placed on the SbitX v2 pcb. It is still hard for me to

Farhan nice. Thanks you for info. There is no rush. It is better to do everything calmly and correctly before shipping and not rush it. - P

Yes, they are numbered. They will be shipped in 24 hours.

On the sbitx v2, we have ample air vents on the top of the raspberry pi as well as on the side panels. I have busted tens of raspberry pi boards but none from too much heating. The raspberry pi draws

I have a non-technical question.?I am not sure how it was with V1 DE but will the V2 units be numbered (sn)? - P