Bluetooth Module Series
HC06U_EVB_User_Guide 15 / 20
3.4. Sleep Switch (JK3)
HC06U EVB includes one sleep switch (JK3), as shown in the following figure.
Figure 7: Sleep Switch
Slide this switch to 3V3 and then press the reset or power button to put HC06U into sleep mode. In
contrast, slide this switch to GND and then press the reset or power button to put HC06U into normal
mode.