LANE Boys RC
Tamiya XR311 P1250921
Close-up of the light controller.
See laneboysrc.blogspot.sg/2012/07/diy-car-light-controller-f... for details.
Notice that there are two chips stacked on top of each-other on the left. These are the LED drivers. In our Dingo I used PWM (pulse width modulation) to control the brightness of the LEDs. However, due to the low speed of the microcontroller this causes flickering when filming at high shutter speeds.
To improve this for the XR311 I use two chips, one for full brightness (20mA) and one for half brightness (~8.5mA).
Tamiya XR311 P1250921
Close-up of the light controller.
See laneboysrc.blogspot.sg/2012/07/diy-car-light-controller-f... for details.
Notice that there are two chips stacked on top of each-other on the left. These are the LED drivers. In our Dingo I used PWM (pulse width modulation) to control the brightness of the LEDs. However, due to the low speed of the microcontroller this causes flickering when filming at high shutter speeds.
To improve this for the XR311 I use two chips, one for full brightness (20mA) and one for half brightness (~8.5mA).