rizwanspirit
Member level 4
I am working on a circuit which contains a Geophone sensor (GS 20-DX), A Zigbee 900 communication module board, a dsp processor and an AVR microcontroller board.
Principle of working is; geophone detects vibrations, dsp processor amplifies and converts this analog signal to digital pulses, microcontroller takes it as interrupt, and transmit it as an alert through Zigbee ANY 900-2 module.
If we donot connect communication module board with microcontroller board everything is fine, but by connecting communication module there are some noise pulses continuously appearing, these pulses have frequency around 60 Hz and 112Hz. the pattern these pulses make is shown in attached figure.
Please guide me on how i can remove this noise?
Thanks
Principle of working is; geophone detects vibrations, dsp processor amplifies and converts this analog signal to digital pulses, microcontroller takes it as interrupt, and transmit it as an alert through Zigbee ANY 900-2 module.
If we donot connect communication module board with microcontroller board everything is fine, but by connecting communication module there are some noise pulses continuously appearing, these pulses have frequency around 60 Hz and 112Hz. the pattern these pulses make is shown in attached figure.
Please guide me on how i can remove this noise?
Thanks