Hi,
We use the nrf app (Android smartphone) to establish BLE communication with trackers designed with nrf51822. When trying to connect, sometimes it works, sometimes it doesn't. When it doesn't, the current wave on VDD, is a constant 20mA current (with a 200µs 40mA peak) with a 50ms period (software settled communication period) which lasts longer every period. After the time out (software settled), the nrf displays "deconnexion". When the connexion established, the current wave is a 500µs 100mA peak current. We use the internal LDO and work with a 3V6 battery (Li) regulated via a 3V3 LDO. Decoupling cap has been increased from 100nF to 2,2µF and then to 4.7µF on VDD pins, and we still have the issue even if not so often. What should be the correct current wave on VDD when trying to connect to a device via nrf app? I do not understand the current wave when connexion doesn't work (20mA DC current whose duration increases after every communication period until time out, which results in an average consumption that increases with time when measuring with an amperemeter). Thanks for your help
Cedric
