Hi all,
I am a new member and I am currently working on an analog self-stabilizing platform. I need some advice about interfacing the accelerometer sensor.
For this project, I will use a 555 timer circuit as the processor which will modulate pulse train -based on the control voltage input pin 5- for the actuator (I'm using a servo, GWS S03T).
The sensor I am using is a MMA7361 modul from DFRobot, it outputs analog voltage in linear manner from 0,85V @-1g to 2.45V @+1g on each axis.
The problem I encounter is that the MMA modul works on 3.3V and the outputs are inside the scale of third of this supply voltage rate (.85 to 2.45), while the input pin 5 of the 555 timer works inside the third of the minimum 5 volts operating voltage of the timer IC. so I need to shift the MMA output.
Anyone have suggestion/s?
I've tried to use Op Amp to amplify the outputs but then with any gain the "center voltage rate" is still differ from the pin 5 requirement.
Thank's for any help and sorry for my bad english.
I am a new member and I am currently working on an analog self-stabilizing platform. I need some advice about interfacing the accelerometer sensor.
For this project, I will use a 555 timer circuit as the processor which will modulate pulse train -based on the control voltage input pin 5- for the actuator (I'm using a servo, GWS S03T).
The sensor I am using is a MMA7361 modul from DFRobot, it outputs analog voltage in linear manner from 0,85V @-1g to 2.45V @+1g on each axis.
The problem I encounter is that the MMA modul works on 3.3V and the outputs are inside the scale of third of this supply voltage rate (.85 to 2.45), while the input pin 5 of the 555 timer works inside the third of the minimum 5 volts operating voltage of the timer IC. so I need to shift the MMA output.
Anyone have suggestion/s?
I've tried to use Op Amp to amplify the outputs but then with any gain the "center voltage rate" is still differ from the pin 5 requirement.
Thank's for any help and sorry for my bad english.