Opto isolation breadboard & Motor driver (PCB)



English

Harry and Jesse have successfully designed and built a motor control board to control two motors (circuit design below), they have started building the second one as well. The opto isolator circuit has been built on breadboard (circuit diagram below) by me and Callum, after building the circuit we attempted to turn on a led with it. This was successfully done.

Cymraeg

Mae Harry a Jesse wedi dylunio ac adeiladu bwrdd rheolaeth echddygol i reoli dau modur (mae'r dyluniad cylched isod) yn llwyddiannus, yr oeddem nhw wedi dechrau adeiladu yr ail un hefyd. Mae'r gylched opto isolator wedi ei adeiladu ar bread board (diagram cylched isod) gan Marc a Callum, ar ôl adeiladu'r gylched rydym yn ceisio troi ar arweinir ag ef.

Motor driver circuit design /  Cylched dylunio modur gyrrwr.

Opto isolation being tested / Ynysu opto yn cael eu profi.

Opto isolater circuit diagram / Cylched dylunio opto isolator.

Motor driver successful

English

Harry and Jesse have built the motor control circuit on breadboard using L293D (link here) and successfully controlled a motor. Scott and Cameron have decided to use potentiometer to give a resistive feedback to the Pi. The opto isolator has arrived, I and Callum have started building the circuit on breadboard.

Cymraeg

Mae Harry a Jesse wedi adeiladu cylched rheolaeth echddygol ar  Breadboard gan ddefnyddio yr L293D (dolen yma) a reoli yr modur yn llwyddiannus. Mae Scott a Cameron wedi penderfynu defnyddio potensiomedr i roi adborth resistive i'r Pi. Mae'r Opto Isolator wedi cyrraedd, mae Marc a Callum wedi dechrau adeiladu'r gylched ar Breadboard.



This a picture of motor driver built on bread board. / Dyma llun o'r modur gyrrwr sydd wedi gael ei adeiladu a'r Breadboard.

The arm has arrived!

English

The robotic arm kit arrived from Maplins and has been built by Harry, Jesse and Matthew. Harry and Jesse have chosen a H bridge microprocessor to control the motors with, as it's very easy to change the direction of the motor. Marc and Callum have researched protecting the raspberry pi, we decided after reading a Linux article on pi protection (link here) that a opto isolater chip would be the best solution.

Cymraeg

Mae'r cit braich robotig gan Maplins wedi cyrraedd ac wedi ei adeiladu gan Harry, Jesse a Matthew. Mae Harry a Jesse wedi dewis pont microbrosesydd H i reoli'r moduron gyda, gan ei fod yn hawdd iawn i newid cyfeiriad y modur. Mae Marc a Callum wedi ymchwilio amddiffyn y Raspberry Pi, penderfynwyd ar ôl darllen erthygl Linux ar amddiffyn pi y byddai'r chip Opto Isolator fod yr ateb gorau.