2 layers87.5 × 103 mm
CAN Cybersecurity Hardware
naveesh1/CAN-Cybersecurity-Project
Real-Time Embedded Cybersecurity and Anomalous Message Detection for In-Vehicle CAN Networks
12 parts
4 layers48 × 31.4 mm
Pelletmon
Majr98/pelletmon1Monitor Estyma-compatibile boiler via CANbus with WiFi / IoT.
- Size
- 48 × 31.4 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 18
- Pads
- 97
- Tracks, vias
- 112, 40
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 12 Mar 2022
- Updated
- 23 Feb 2022
Overview
Pelletmon is an open-source printed circuit board by Majr98, from the Majr98/pelletmon repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 48 × 31.4 mm with 18 parts on 18 nets, routed with 112 tracks and 40 vias.
It is built around the ESP32-WROOM-32, SN65HVD230D and AMS1117-3.3. Its parts include 4 capacitors, 4 resistors, 4 connectors, 3 ICs and 1 diode. It belongs with the radio and wireless and interfaces and adapters boards and the ESP32 boards of this library.
Main components
3
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdWHAT AND WHY?
Our old boiler was previously connected to my IoT system. After replacing the boiler with a new one, we no longer have this option. So why not introduce it to a new boiler?
THE TARGET
The goal of the project is to reverse engineer the CAN communication of the new boiler and expose real-time data to the IoT. By the way, the HC-SR04 sensor will measure the fuel level in the tank.
DESIGN
The project will have its own PCB. Communication with the outside world will be carried out using ESP32 and fuel level measurement using HC-SR04. The SN65HVD230 chip will be used as the CAN transceiver. The software will be written in the Arduino environment in C ++ and will be powered with my IoT framework - ksIotFrameworkLib.
KNOWN ISSUES
HARDWARE
rev 0.01a-0.01c
- GPIO0 is directly connected to SWITCH (S1), avoid setting direct HIGH state at that pin from software, because it can result in short circuit when pressing S1, as it will tie IO0 to ground directly.
SOFTWARE
Hardcoded CAN support.(now using VideNet, which is universal)Sometimes at boot sends "zero" values to MQTT.- No support for fuel level sensor. (it was previously planned, but VideNet gives info about fuel usage)
PICS
Special thanks
- M-Works [ https://m-works.net/ ]
- Robert Labuz.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitor_SMD:C_1206_3216Metric | C1, C4 |
| 2 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R2 |
| 1 | 10µf | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I | C2 |
| 1 | 120R | Resistor_SMD:R_1206_3216Metric | R9 |
| 1 | 220R | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 47µf | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I | C3 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | CFG | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32U | U3 |
| 1 | Polyfuse_Small | Resistor_SMD:R_1206_3216Metric | F1 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_B3SL-1022P | S1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J1 |
Questions
How big is the Pelletmon PCB?
It measures 48 × 31.4 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Pelletmon use?
18 parts, built around the ESP32-WROOM-32, SN65HVD230D and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pelletmon KiCad files?
From the Majr98/pelletmon repository on GitHub, at the commit this page was made from: the board is hardware/PelletMon.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pelletmon design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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