SunSPec 5 - Telemetry System

Week 3 We have finished testing the optoisolator through a different simpler circuit as of the previous one we did. Instead of trying to read the digital signal being sent through, we decided to test if the signal sent through can power up a LED connected on the HV side and be controlled from the LV side. Figure 1: Optocoupler circuit As seen from above, the LED is on and powered by the signal sent from the LV side, if we were to off the switch at the LV side, the LED at the HV side will turn off. What we are basically doing is using the signal to control our LED. We don't have a bigger load at the moment as the only motor we found isn't working. Once we have a bigger load than a LED, we will most probably test it and try to see if we can control it using a microprocessor instead of a simple switch.  We found out from Mr. Kenny, the main purpose of the optoisolator is to separate the ground of HV e.g. the Battery and the Arduino in the SunSPec, and that we a...

Week 3 & Week 4 We were tasked to work on the transmission of sensor data within the car with the Bluetooth module, HC-06 FC114, hence eliminating the need of using wiring. We are tasked to use the HC-05 FC-114 (master), and HC-06 FC-114(slave) Bluetooth module and pair them up to allow the communication of Arduino through Bluetooth transmission.  http://www.martyncurrey.com/connecting-2-arduinos-by-bluetooth-using-a-hc-05-and-a-hc-06-pair-bind-and-link/ Figure 1: HC-06 FC-114 Bluetooth Modules The HC-05 module can be used to be set as either the master or the slave, while the HC-06 module can only be set as the slave module. In this case, we will be using the HC-05 as the master and the HC-06 as the slave. To do so, pairing and linking of the modules' required. It is so that the modules will connect to each other automatically when powered up. To do so, the modules first have to be powered up and connected correctly. In this case, we are using th...

We spent some time arranging the components found from T1023 and W13 that will be useful for our project and placed them in boxes.  Figure 1: Telemetry components from W13 Figure 2: Boxes of sorted components We accidentally soldered wires onto the optocoupler board instead of headers and had difficulties removing them, where we broke some of the tracks in the process of removing the wires. We met up with our supervisors on Tuesday, we were then briefed and given the HC-06 FC-114 and RedBear Bluetooth modules to test. It is then found out that HC-06 can only be used as a slave module, whereby the HC-05 is required to be used as a master module. We went to Sim Lim Tower's Amicus Engineering to purchase 3 HC-05 FC-114 Bluetooth modules on Wednesday. We faced several problems with the Arduino IDE after trying to set-up for RedBear. >:( We are able to enter the AT mode for HC-06 FC-114 and upload the code onto the board. Whereby the LEDs on the ...