3 posts / 0 new
Last post
Krishna
Offline
Last seen: 6 years 11 months ago
Joined: 2014-04-02 18:05
Connecting to a motor

Hi,

I would like to connect the BLE proximity to a motor. Are there any instructions on how to do so?

Thanks.

Krishna
Offline
Last seen: 6 years 11 months ago
Joined: 2014-04-02 18:05
Any reference designs?

Any reference designs?

BB_Dialog
Offline
Last seen: 1 year 3 months ago
Staff
Joined: 2013-12-05 14:44
Hi Krishna,

Hi Krishna,

sorry, there are no reference designs for this.
W.r.t. hardware, we propose to connect the motor (vibrator?) via a transistor to cope with the higher currents.
e.g. PNP transistor, emittor connected to e.g. VBAT (3V). Collector driving the motor which is connected to ground at the other side.
The base is connected to a DA14580 GPIO via a series resistor. When GPIO is Low => motor is driven.
To cope with switch-off peaks, connect an anti-parallel diode to the motor.

B.R., Dialog BLE Support Team