Energy Harvesting with Piezo and Wireless Communication with the nRF52832

RE: Energy Harvesting with Piezo and Wireless Communication with the nRF52832

awneil — Mon, 18 Mar 2019 12:13:50 GMT

Also be sure that you are using low-leakage capacitors

RE: Energy Harvesting with Piezo and Wireless Communication with the nRF52832

Simonr — Mon, 18 Mar 2019 11:50:56 GMT

Hi Pascal

Have you made any calculations, so you know that the piezoelectric element outputs enough power to run the nRF chip? If not I suggest you do a characterization, to see if you are able to provide the power stated in our Product Specification. If you are able to output enough power, it shouldn't be necessary to remove or lower any capacitors.

It is not recommended to remove or change any of the components in our reference design.

Best regards,

Simon

RE: Energy Harvesting with Piezo and Wireless Communication with the nRF52832

p1widmer — Mon, 18 Mar 2019 09:49:05 GMT

We`re going to write an own protocol and send just some bits. In addition we have an external LDO, which needs just an supporting capacity of 10nF.

RE: Energy Harvesting with Piezo and Wireless Communication with the nRF52832

awneil — Mon, 18 Mar 2019 09:44:19 GMT

If you don't have enough power just to charge those capacitors, how are you ever going to do BLE transmissions?!?!