With 4017 CMOS Norcim Electronics
This it is the circuit Coder 2 of the old site. This circuit is but simple and economic of all the circuits since it uses integrated circuit CMOS 4017 and much like a simple accountant and in the systems of analogical data transmission is used by all means using modulation by wide of pulse.The circuit which we will see next is a circuit that provides a signal to us with radio control bases efficient, but with the intervention of several electronic components that act as to conform each one of the periods of time and the waveform of the code.
Circuit Coder
DescriptionHe himself has capacity to control up to 8 servo and one stability for a rank of tensions from 5V to 10V. The potentiometers are used considering the central pin, which makes but the investment easy of the servo one with a simple key of three pins investing.
This it is the circuit that I was experimenting a pair ago of months and the truth is that I believe that works very well generating a good signal of R/C.
Circuit coder with 4017
The transistor of the multivibrator is used like clock for the integrated circuit accountant CMOS 4017. While this happens the exit of the 4017 sequentially injects time to the multivibrator through T1 to T4. It makes single to a branch of the multivibrator to obtain the correct waveform.
As resulting from this is a sequence of modulated pulses (single up to 8), the space of time between each pulse is variable between 1 to 2ms thanks to the variation of the control potentiometers (it notese that single the 60 central degrees of the route of the potentiometer are used to be able to have joystick normal).
After all the channels have been generated, a time of delay by Q0 takes place from 8 TS of ms of duration, the sufficient thing like resetear to the receiver so that it hopes again by the first pulse.
The drawn circuit this for 4 servo ones, but can be added but potentiometers to the exits available of the 4017 without problems.
The small circuit of but down accompanies each potentiometer by control (T1 to T4). The diodes are 1N4148 and C1 is of 47n to 5% of tolerance for T1 to T8. Tsync of 8ms is produced by TS, which is he himself circuit where C1 is of 0.15uF. The R11 resistance in preset that determines the center of the servo ones. Preset R10 regulates the rank of the servo ones. (Notese that R10 and R11 interact to each other so to find the balance is necessary to play a little with them). The potentiometers only have a value of 5K.
