Bonus start up video, sweet sounds to my ears!
The VTX also works, though apparently I mounted the camera upside down - but thatβs easy to fix :)
Today is Free Shipping Friday at INPRNT - yay! Get you or someone you like a new art friend.
https://inprnt.com/gallery/studioyesyes
#MastoArt #FediArt #Illustration #Vintage #Retro #1980s #1970s #Elecronics #ReelToReel #Atari #Mattel #Cassette #BoomBox #Turntable #Vinyl #PortableTV
#PortableTV #vinyl #turntable #boombox #cassette #mattel #atari #reeltoreel #elecronics #1970s #1980s #retro #vintage #illustration #fediart #MastoArt
So, what am I making? I'm building a BME280-based temp/pressure/humidity logger. I know I'm not the first and won't be the last.
Once a minute, the #ATmega48 gets the current measurements from the #BME280 via SPI and dumps the raw 8-byte measurement to the serial port. The next step is to make it log the data to an SPI flash as well.
For example, the measurement '5428007e8e004a95' translates to 19.386 degC, 1015.645 hPa, 33.671%rh.
On an #oscilloscope the waveform looks somewhere between a sine and a triangle wave. The 3.5Vpp is probably pushing the transistor a bit too hard and causing distortion. Either way, getting 7.55MHz with essentially no effort is pretty cool.
7.55MHz and 6.4uH yields a capacitance of 69pF. The tester design uses two 100pF capacitors making approx. 50pF in parallel with the crystal. The breadboard and wires could easily provide the other 19pF. #elecronics
#elecronics #debugging hey internet. I accidentally blasted my microphone with a heat gun a few weeks back and it now has a whine. This is a picture of the circuit boards. Are there any good guides for debugging this or should i make a bit of ewaste and buy a new one?