Re: Diy oscilloscope

Michael Monteith All Messages By This Member #41066 Jerry, ?? I love the idea of using a SA612 type device to bring the frequency down.?? The STM32 micro could process the signal.? Over in the?? several people have made their own o-scope out of the device.? They even squeezed better performance as well. ? I used to follow the group very closely. ? But I'm using mostly ESP32 devices myself right now so haven't followed it much at all lately. ? As far as o-scopes is concerned I bought? Hantek 6022 I think it is.? It's like around $70 and has 20Mhz bandwidth.? I've used it on several projects and does a great job. Mind you it uses 2 usb ports.? I use my laptop for that.? 73, Michael KM4OLT toggle quoted message Show quoted text On Thu, Feb 1, 2018 at 07:30 pm, Jerry Gaffke wrote: Yes, it's useless for RF as is, and likely kind of ideosyncratic and of sub 200khz bandwidth. But for $23, it's very interesting.? Gets good reviews on Amazon: ? ? ?? Could add an SA612 mixer, bring your transmitted signal down to 100khz and then monitor it using the DSO138. Page 75 of the datasheet for the STM32F103C8 used on that scope ? ?? says the sample time of the ADC when operating at 1msps is 0.107us

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