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I probably will mod mine somewhat; I'm an apartment dweller, sadly, the management here seems to feel that no modifications are allowed at all to the place, so I'll only be able to transmit when out

sorry this is the link for the box https://www.amazon.es/gp/product/B0143YWC2W/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 (

I have this one. Enough room and the nice tilting bar feature. You will have to drill holes for the speaker. You may use different panels as the fron and rear are detachable. They are only with a

The datasheet says an absolute max of Vcc+0.5v on any IO pin. ?So if the Raduino power is down (even momentarily), tying the Bitx40's 78L05 directly to the Nano's A0 will blow the Nano, even if the

John Backo, Most of your post seems to be in regard to this excerpt from one of my previous posts: "You either get a 0 or a 1 back when you read a pin with digitalRead(). ?If the voltage at the pin

Well, the last message mixed metaphors a bit and should be thought through. If A0 is an analog pin (which it is by default), then the AREF is divided into 1024 parts and the measured signal is

Not quite, Jerry. "I've put the 10k pull-down register at the "A0" and maybe the problem seems to be fixed now. This issue caused by the threshold problem?" The issue is a bit complex, but the

Sockets are good when you need them, but otherwise they are just dozens of extra potential points of failure. ?Especially for somebody operating portable at the beach, the slightly corrosive salt air

Here's the datasheet for the processor used on the Nano: ?http://www.atmel.com/Images/Atmel-42735-8-bit-AVR-Microcontroller-ATmega328-328P_Datasheet.pdf (

Yep I blew up one as well when I had it just wired up and laying on the workbench and I just repaired another one with the same problem. It is only $3 but I sure would like to know the thought process

Back in January I experienced a short with one of the loose wires and the metal heatsink. Jerry knew how to fix the rough tuning that resulted from the short. The A6 tuning pin was conducting current

Admittedly, my memory's not what it used to be, but I don't remember anyone blowing an Nano I/O pin. I'm sure there have been some who somehow connected 12V directly to an input pin but, to me, that's

Sounds good. The reason the Bix40 is so popular is that it gives great performance with? very few parts. ?Your approach is in line with that philosophy. Keep it simple wherever we can. Jerry, KE7ER

At this point in time, there are approximately 156 markers on the map. What is the estimate number of BITX40's sold? Judging from previous conversations about serial numbers and batches, I would guess

Yes, sensing the 12V from the TX/RX line is also an option. But I'm still a bit reluctant as I'm not completely convinced yet that we anyway need a two-resistor solution. The elegantly simple

The reason to go with the output of the 78L05 was because it swings between 0 and 5v, which is the range acceptable to the Nano. But looks like we want two resistors to do that properly. Perhaps the

Adding a 10k load to the 78L05 will not affect bias to the IRF510 gate. The 78L05 can supply between 0 and 100ma while maintaining a constant 5v at the output. That 10k resistor will draw an extra

Sadly, I was sure it would wind up that way. I think we all appreciate that you want it to be owned collectively but it is too much work to ask you to keep downloading the latest .kmz. So if you have

All, many thanks for all of your thoughts and comments. I tend to agree with Jerry that probably the easiest and most reliable way to improve the situation would be to just add a 10K resistor at the

Once again someone who didn't understand the map and didn't take the time to ask for help or RTFM blew it up.? I have been manually downloading the kmz randomly so we are restored as of about 2:30 pm