Hi @GaudiLabs, I have started soldering the components for OpenTheremin V3 (ordered them from Mouser using the BOM file) and I have found two errors so far.
C22 is listed as 47nF in BOM however schematics show 10nF. Checking the RC filter frequency, 10nF seems the right one (Fc=7.2kHz). With 47nF we'd get Fc=1.5kHz which seems way too low.
R18, R19 are listed as 270R in BOM however schematics show 470R. Not a big deal. Provided arduino is able to provide enough current the led will be brighter :-)
Btw, I have also rerouted the PCB for increasing the via drill to 0.5mm and track widths / clearance to 0.35mm. These where requirements for one PCB house I've tried. I have not yet tested if the new PCB works, hopefully I didn't broke anything. I will probably fork and commit it to a new repo.
Hi @GaudiLabs, I have started soldering the components for OpenTheremin V3 (ordered them from Mouser using the BOM file) and I have found two errors so far.
C22 is listed as 47nF in BOM however schematics show 10nF. Checking the RC filter frequency, 10nF seems the right one (Fc=7.2kHz). With 47nF we'd get Fc=1.5kHz which seems way too low.
R18, R19 are listed as 270R in BOM however schematics show 470R. Not a big deal. Provided arduino is able to provide enough current the led will be brighter :-)
Btw, I have also rerouted the PCB for increasing the via drill to 0.5mm and track widths / clearance to 0.35mm. These where requirements for one PCB house I've tried. I have not yet tested if the new PCB works, hopefully I didn't broke anything. I will probably fork and commit it to a new repo.