Quantity   Component name
1 × ESP32 Development Board (€ 7.20) ESP32 Development Board WiFi+Bluetooth Ultra-Low Power Consumption Dual Cores ESP-32 ESP-32S Board
1 × SN65HVD230 CAN bus transceiver (€ 1.20) SN65HVD230 CAN bus transceiver communication-module for arduino
1 × Mini DC-DC 12-24V To 5V 3A Step Down Power Supply Module (€ 0.56) Mini DC-DC 12-24V To 5V 3A Step Down Power Supply Module Voltage Buck Converter Adjustable 97.5% 1.8V 2.5V 3.3V 5V 9V 12V
1 × Renault Clio