Gondola is a tool used to access areas outside the building. Gondola is usually used to carry out building maintenance such as glass cleaning, glass repair and building painting. In the gondola there are components that are vulnerable to damage, one of which is the magnetic brake. Magnetic brake is a gondola motor braking system that moves the brake pad clamping iron plate with the principle of magnetic induction. If the gondola often operates, the temperature, voltage and current need to be monitored to find out the temperature, voltage and current quantities on a regular basis to make it easier for technicians to carry out maintenance. This study aims to monitor temperature, voltage and current data as a reference to determine the condition of the magnetic brake. The results of this research are the temperature sensor, voltage sensor and current sensor function well with the percentage error for the temperature sensor is 0.052%, for the voltage sensor is 0.017% and for the current sensor is 0.028%.
Keywords: temperature sensor, current and voltage sensor, nodemcu