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It looks like a resonator is allready soldered to the board, for this produc, with external capasitors: https://lechacalshop.com/misc/23-atmega328-tqfp32-arduino-socket-programmer.html What is the frequency of the resonator, and what is the package . . .
The resonator is 16Mhz. On newest versions the package is 11.4 mm x 4.7 mm SMD.
Another question regarding this product: https://lechacalshop.com/misc/23-atmega328-tqfp32-arduino-socket-programmer.html What is the pitch of the 32 pin headers coming out of the PCB having the TQFP socket? There are 16 pins on each side (two rows) . . .
Pitch is 2.54mm for the lateral connectors..
In one product image for this product: https://lechacalshop.com/misc/23-atmega328-tqfp32-arduino-socket-programmer.html ... there is two parts. One PCB with female headers and a resonator, and one PCB with the TQFP32 socket. Are these sold as shown . . .
Yes this is correct. The product consist of two parts. The hosting card with the resonator and the TQFP socket. They are made to fit together.