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Back to the original topic of how to power the Raduino during update. (I just posted my final solution to the fan noise in that thread; ignore what I said earlier in this one). I got to the point

I too was having trouble with fan noise. Been playing with it all week! I have an 80mm (3+ inch) 12V brushless fan. I put a 100 ohm 2W resistor in series with the fan and a 680uF cap (that's what I

Sorry for the delay. Yes try that mod.

I'm in the process of putting my BIT40 together (it showed up Tuesday) and finally have the front panel finished enough to power up the Raduino. So I put a freq counter on the DDS output and tuned

That makes sense... Jack, W8TEE To: [email protected] Sent: Saturday, June 3, 2017 9:26 PM Subject: Re: [BITX20] CW on Allard's Code v1.13

I guess this is just to save two I/O pins? Anyway it would require some extra code and I wonder if we will be able to implement this as we are running out of program space and dynamic memory. 73

Hi Charlie, The current code only supports straight key. Of course you could also connect an external electronic keyer to the CW KEY input instead. 73 Allard PE1NWL

Decided to pimp my BitX40.... Just some LED strips in my temp case. :-) Joe, KD2NFC Sent from my iPhone

Hi, This is my first post to the group. I recently purchased a BITX40 SMD and really like it. So much that I was wondering if someone has converted it to other bands such as 15 or 20m? Any info

Ok Charlie, Thanks! 73, Kevin NZ1I

It is used to adjust the PA drive.?? See Alignment of the BITX40 at http://www.hfsigs.com/bitx40v3_wireup.html

I'm curious why not two I/O pins using the internal pullup resistors and a dit() and a dah() function? Jack, W9TEE To: [email protected] Sent: Saturday, June 3, 2017 2:50 PM Subject: Re: [BITX20]

Maybe a dumb question but I would like to know what is it supposed to do this 100 ohm trimmer

I envisaged the same line to be used for straight and paddle keys. here is how : 1. the morse line is analog input pulled high by an external resistor of 4.7K from 5 volts. 2. the straight key is

Hi Allard I am currently putting together a bitx with your mods implemented, however I can only see a straight key implemented. Can I connect a paddle (using another input for dots) and would

Analog pin A6 (connector P1, blue wire) is still currently free. It may be used in future arduino versions though. In the sketch, look for #define ANALOG_TUNING (A7) change that to #define

The capacitor on the tuning pot definately works as my spare Raduino, works fine. Phil - G7BZD

Have you added a 100pF cap on both sides of central wire? I did and after a while tuning was unresponsive. It turned out one cap was blown

Unfortunately the nano on a Raduino is soldered in place. Ahhh well, as My father used to say, I always do things the awkward way, set fire to the house to light a candle. Think its time i tidied the

According to the schematic, yellow isn't ground. Orange is. All three wires for the pot go right to the nano. So if there's not a blown trace, there's prolly a blown nano port. You may be able to