Hello everyone,
I am having a problem with powering my nrf51822, I have 2 Li ion batteries to power my nrf51822 and a stepper motor, I put the batteries in series to have more power, this way I reache 8.4V in total, that is good, I also know that I can't give 8.4V to my nrf51822, I would destroy it, that is why I use a voltage regulator (https://nl.farnell.com/rohm/ba33dd0t/ldo-fixed-3-3v-2a-to-220fp-3/dp/2342847?ost=BA33DD0T&scope=partnumberlookahead&searchref=searchlookahead&krypto=B%2Bw6trfVJ2dPy0i%2BfgvVpPNNDjQ5GUbVOE1577D2pXPRdc4fYMoJeZKoLSZUPfZwVkhKpDTJ7mPe25JpWIoTic%2FWd7836MhN03vOmRUguobXFuQsMvX3w4zBC8hWIAB3sK6pN%2FMA7mEfbo0W4Jcyv5Z%2F9tdqzOYKtPt2Iz2VLnUSxL%2B1xTNAYEE1LZUAaQAfzx4URrYIaCIk7qjr4X9oiVaSYdP%2BS57MvCc%2BIJwv76zpiYDGMa22SjlyQRFnwWnOcc%2FNZl2IBGNfNItoMcY4fXbMqtomq%2B2%2BeU0Y2hd0dn1i7Dr65HsK6guRm5REUma%2BKFbvAdLYE%2FxublbPrn1qZ78Xey0WeNr%2FriAtK8F5DEl1qz%2F33ynSAUZDRah3N4cgjSalaIgC2AJzFImZj%2BGy36aAJkiEVdOOx2F6iax2R5Exd%2FB1XyT55VOGd0tPe1SeRxSeD96MOkLK7Dql40pqPHkTsOMhjWDeI62nUSTXcM4Nj1BGDCSBu%2FpIxxBj1wUNLHnztLMqHHcznJ%2FdLu%2Bc%2FPG%2Bt%2FT5chCxGkQCULzmqhhLm54hqfqXOO7YOVNwHy3HEL0EITqYdcGZ7yPnkgAc4ckmUCIzUuIIM97TKAzCd1U%3D&ddkey=https%3Anl-NL%2FElement14_Netherlands%2Fw%2Fsearch) I am using this one.
In output i have a stable 3.3V (I measured it with my multimeter) and I have 1.4Amp of current, when I plug the nrf51822, it turns on, it is visible as a peripheral in nrfToolbox and when I try to connect I can't, I have "Error on connection state change (133), I tried to power the nrf51822 with only one batterie that has 3.6V and 2.6Amp of output current and with this I can connect to the nrf51822, I even tried to power it with 2 AAA batteries that have 3.0V and 1Amp of output current and it works.
So I think the problem comes from the voltage regulator, I tried with a different one, even changing the capacitors, but still doesn't work. If someone has an idea of what could be the problem, it would be really helpfull, because I have no idea at this point.
Thank you very much.
Best regards.
I am having a problem with powering my nrf51822, I have 2 Li ion batteries to power my nrf51822 and a stepper motor, I put the batteries in series to have more power, this way I reache 8.4V in total, that is good, I also know that I can't give 8.4V to my nrf51822, I would destroy it, that is why I use a voltage regulator (https://nl.farnell.com/rohm/ba33dd0t/ldo-fixed-3-3v-2a-to-220fp-3/dp/2342847?ost=BA33DD0T&scope=partnumberlookahead&searchref=searchlookahead&krypto=B%2Bw6trfVJ2dPy0i%2BfgvVpPNNDjQ5GUbVOE1577D2pXPRdc4fYMoJeZKoLSZUPfZwVkhKpDTJ7mPe25JpWIoTic%2FWd7836MhN03vOmRUguobXFuQsMvX3w4zBC8hWIAB3sK6pN%2FMA7mEfbo0W4Jcyv5Z%2F9tdqzOYKtPt2Iz2VLnUSxL%2B1xTNAYEE1LZUAaQAfzx4URrYIaCIk7qjr4X9oiVaSYdP%2BS57MvCc%2BIJwv76zpiYDGMa22SjlyQRFnwWnOcc%2FNZl2IBGNfNItoMcY4fXbMqtomq%2B2%2BeU0Y2hd0dn1i7Dr65HsK6guRm5REUma%2BKFbvAdLYE%2FxublbPrn1qZ78Xey0WeNr%2FriAtK8F5DEl1qz%2F33ynSAUZDRah3N4cgjSalaIgC2AJzFImZj%2BGy36aAJkiEVdOOx2F6iax2R5Exd%2FB1XyT55VOGd0tPe1SeRxSeD96MOkLK7Dql40pqPHkTsOMhjWDeI62nUSTXcM4Nj1BGDCSBu%2FpIxxBj1wUNLHnztLMqHHcznJ%2FdLu%2Bc%2FPG%2Bt%2FT5chCxGkQCULzmqhhLm54hqfqXOO7YOVNwHy3HEL0EITqYdcGZ7yPnkgAc4ckmUCIzUuIIM97TKAzCd1U%3D&ddkey=https%3Anl-NL%2FElement14_Netherlands%2Fw%2Fsearch) I am using this one.
In output i have a stable 3.3V (I measured it with my multimeter) and I have 1.4Amp of current, when I plug the nrf51822, it turns on, it is visible as a peripheral in nrfToolbox and when I try to connect I can't, I have "Error on connection state change (133), I tried to power the nrf51822 with only one batterie that has 3.6V and 2.6Amp of output current and with this I can connect to the nrf51822, I even tried to power it with 2 AAA batteries that have 3.0V and 1Amp of output current and it works.
So I think the problem comes from the voltage regulator, I tried with a different one, even changing the capacitors, but still doesn't work. If someone has an idea of what could be the problem, it would be really helpfull, because I have no idea at this point.
Thank you very much.
Best regards.