This month, we made a massive improvement to our micromouse by checking and repairing the connection of components within the PCB. We obtain better performance and more stable obstacle avoidance. I also soldered and tested the light dependent resistor (LDR) sensors and LED circuits to detect the colour of a surface and they were then attached to the bottom of the micromouse by my team member. After the code was uploaded, we calibrated the two front sensors to detect the white line. The sensors are working and the micromouse can follow the white line, but it is not consistent.