| U1 | R-78E5.0-0.5 | 500mA Step-Down DC/DC-Regulator, 7-28V input, 5V fixed Output Voltage, LM78xx replacement, -40°C to +85°C, SIP3 |
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| U2 | MQ-8 | Gas Sensor (Hydrogen) |
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| U3 | SN65HVD232 | CAN Transceiver |
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| U4 | Volt_check-NCV308 | Voltage supervisory circuit |
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| U5 | MQ-131 | Ozone Sensor |
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| U7 | LDO-TLV74033PDBVR | LDO Fixed output 3.3V. Input range: 3.7V-5.5V. 300mA |
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| U8 | ESP32-S3-WROVER | RF Module, ESP32-S3 SoC, Wi-Fi 802.11b/g/n, Bluetooth, BLE, 32-bit, 3.3V, onboard antenna, SMD |
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| U9 | TVS | |
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| C2,C20,C23 | 100nF | Unpolarized capacitor |
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| C17-C19,C22,C24,C25 | 10uF | Unpolarized capacitor |
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| C21 | 1uF | Unpolarized capacitor |
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| D4 | CVJ10F30 | |
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| D5 | B | Light emitting diode |
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| J3,J6 | Eth-Horiz | RJ connector, 8P8C (8 positions 8 connected), RJ31/RJ32/RJ33/RJ34/RJ35/RJ41/RJ45/RJ49/RJ61 |
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| J7 | USB_C_USB4145-GCT | USB 2.0-only 16P Type-C Receptacle connector, Vertical |
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| R1,R7 | 10k | Resistor,resistor |
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| R2 | 20k | resistor |
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| R6 | 1k | Resistor |
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| R8,R9 | 5k1 | Resistor |
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| SW1,SW2 | SW-PTS815SJM250SMTRLFS | Push button switch |
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| TP1,TP2 | TestPoint | test point |
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