Overall Schematic
Fixed DC power supply 20V 3A(input to driver IC)-->Variable Buck converter-->L289n driver->C1_Peltier/TEC,C2_DC-FAN
supply control for possible low power using PID control scheme
Temperature Sensors
Analog sensor -->A0 pin of Nano_33_iot
Digital sensor--> D21pin of Nano_33_iot
Provide feedback data to close loop system as per set/reference values for temperatures of heatsink and cooling inside the container.
L289n -->PWM-5,8pins(volt _control) & gpio_4,6,7,9(supply_direction) Nano_33_iot
Application of Ublox chip as wifi setup to connect to Ubidots Dashboard (other similar)
Application of IMU to
- certain frequency Vibration check for inserting/replacing samples(as vaccine) and also check for cooling loss during this period.
- Overall setup vibration during On/Off periods
- check anomaly detection for system off alarm
