4 layers100 × 100 mm
4 layers101.2 × 47.9 mm
Dashcam
Stevemwa/FMS_ESP32This is a fleet management system that sends vehicle location data over to Firebase Cloud
- Size
- 101.2 × 47.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 129
- Nets
- 227
- Pads
- 531
- Tracks, vias
- 883, 74
- Pours
- 395
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 8 Dec 2024
- Updated
- 10 Dec 2024
Overview
Dashcam is an open-source printed circuit board by Stevemwa, from the Stevemwa/FMS_ESP32 repository on GitHub. It is a 4-layer board of 101.2 × 47.9 mm with 129 parts on 227 nets, routed with 883 tracks and 74 vias.
It is built around the ATMEGA2560-16AU, SIM7600E-H and LM2596S-5.0, with the LM2596S-ADJ, TXB0108DQSR and 24LC32A/P among its other parts. Its parts include 35 capacitors, 24 resistors, 13 diodes, 10 ICs and 9 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
9
ATMEGA2560-16AU
TQFP-100(14x14)-40℃~+85℃ 10bit 16MHz 256KB 4.5V~5.5V 4KB 8 Bit 86 8KB AVR Built-in FLASH TQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SIM7600E-H
SMD,30x30mm-40℃~+85℃ 3.4V~4.2V UART、I2C、USB SMD,30x30mm RF ModulesSIMCom Wireless SolutionsRF Modules
LM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersLM2596S-ADJ
TO-263-5-40℃~+125℃@(TA) 1 1.2V~37V 150kHz 3A 40V 80uA Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSUMWDC-DC Converters
TXB0108DQSR
SON-20(2x4)-40℃~+85℃ 1.2V~3.6V 1.65V~5.5V 100Mbps Bidirectional Decoupling、Auto Direction Detection、Power-Off Protection Tri-State SON-20(2x4) Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
24LC32A/P
PDIP-80℃~+70℃ 2.5V~5.5V 32Kbit 400kHz 5ms I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM
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
MPU-6050
QFN-24-EP(4x4)-40℃~+85℃ 16bit 1KB 2.375V~3.46V 5uA Accelerometer Gyroscope I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(4x4) Accelerometers ROHSTDK InvenSenseAccelerometers
B320
SMC(DO-214AB)-55℃~+150℃ 1 Independent 100A 100uA@20V 20V 3A 500mV@3A SMC(DO-214AB) Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
Parts
129| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitor_SMD:C_0402_1005Metric | C11, C12, C14, C16, C20, C21, C22, C32, C33, C34, C35 |
| 10 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R10, R11, R21, R22 |
| 6 | 220uF | Capacitor_SMD:C_1812_4532Metric | C9, C10, C13, C15, C17, C18 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 4 | 22pF | Capacitor_SMD:C_0402_1005Metric | C1, C19, C23, C24 |
| 4 | 47k | Resistor_SMD:R_0402_1005Metric | R15, R16, R17, R19 |
| 4 | D_TVS | Diode_SMD:D_0402_1005Metric | D4, D5, D11, D12 |
| 4 | NC | Capacitor_SMD:C_0402_1005Metric | C26, C27, C29, C30 |
| 4 | TVS | Diode_SMD:D_0402_1005Metric | D6, D7, D8, D9 |
| 3 | 22R | Resistor_SMD:R_0402_1005Metric | R7, R8, R9 |
| 3 | U.FL-R-SMT_01_ | C-Footprint:HRS_U.FL-R-SMT_01_ | J7, J9, J10 |
| 2 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5, C7 |
| 2 | 0R | Resistor_SMD:R_0402_1005Metric | R12, R13 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C3 |
| 2 | 330uH | Inductor_SMD:L_AVX_LMLP07A7 | L1, L2 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R23, R24 |
| 2 | B320 | Diode_SMD:D_3220_8050Metric | D2, D3 |
| 2 | BC818 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | G*** | kibuzzard-65B8F6F0 | kibuzzard-65B8F6F0, kibuzzard-65B8F6F0 |
| 2 | G*** | kibuzzard-65B8F71B | kibuzzard-65B8F71B, kibuzzard-65B8F71B |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D13 |
| 2 | TXB0108DQSR | C-Footprint:SOP65P640X120-20N | U7, U9 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C4 |
| 1 | 100uF | Capacitor_SMD:CP_Elec_4x3 | C31 |
| 1 | 100uF | Capacitor_SMD:C_0805_2012Metric | C25 |
| 1 | 10R | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6 |
| 1 | 16MHz | Crystal:Crystal_SMD_7050-2Pin_7.0x5.0mm | Y1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C28 |
| 1 | 2.2uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C8 |
| 1 | 24LC32 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 1 | 27nH | Inductor_SMD:L_0805_2012Metric | L3 |
| 1 | 300R | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | ATmega2560-16A | Package_QFP:TQFP-100_14x14mm_P0.5mm | U1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Seiko_MS621F | BT1 |
| 1 | Conn_01x03 | C-Footprint:3pin_solder | J3 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Conn_02x02_Top_Bottom | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J5 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J4 |
| 1 | G*** | kibuzzard-65B8E947 | kibuzzard-65B8E947 |
| 1 | G*** | kibuzzard-65B8F7E7 | kibuzzard-65B8F7E7 |
| 1 | G*** | kibuzzard-65B8EF32 | kibuzzard-65B8EF32 |
| 1 | G*** | kibuzzard-65B8EF7A | kibuzzard-65B8EF7A |
| 1 | G*** | kibuzzard-65B8E927 | kibuzzard-65B8E927 |
| 1 | G*** | kibuzzard-65B8F803 | kibuzzard-65B8F803 |
| 1 | G*** | kibuzzard-65B8E8C6 | kibuzzard-65B8E8C6 |
| 1 | G*** | kibuzzard-65B8F0B4 | kibuzzard-65B8F0B4 |
| 1 | G*** | kibuzzard-65B8EF27 | kibuzzard-65B8EF27 |
| 1 | G*** | kibuzzard-65B8EF8E | kibuzzard-65B8EF8E |
| 1 | G*** | kibuzzard-65B8EF58 | kibuzzard-65B8EF58 |
| 1 | G*** | kibuzzard-65B8F739 | kibuzzard-65B8F739 |
| 1 | G*** | kibuzzard-65B8F746 | kibuzzard-65B8F746 |
| 1 | G*** | kibuzzard-65B8EF0A | kibuzzard-65B8EF0A |
| 1 | G*** | kibuzzard-65B8F7D9 | kibuzzard-65B8F7D9 |
| 1 | G*** | kibuzzard-65B8E8EC | kibuzzard-65B8E8EC |
| 1 | G*** | kibuzzard-65B8F7F5 | kibuzzard-65B8F7F5 |
| 1 | G*** | kibuzzard-65B8E966 | kibuzzard-65B8E966 |
| 1 | G*** | kibuzzard-65B8EF6A | kibuzzard-65B8EF6A |
| 1 | JAE_SIM_Card_SF72S006 | Connector_JAE:JAE_SIM_Card_SF72S006 | J6 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D10 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U4 |
| 1 | LM2596S-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U3 |
| 1 | LOGO | C-Footprint:Luffy6by6 | Stev0 |
| 1 | MPU-6050 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U2 |
| 1 | NEO-6M-GPS | C-Footprint:XCVR_NEO-6M-GPS | U8 |
| 1 | SIM7600E-H | C-Footprint:IC_SIM7600E-H | U6 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_B3SL-1002P | SW1 |
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Questions
How big is the Dashcam PCB?
It measures 101.2 × 47.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Dashcam use?
129 parts, built around the ATMEGA2560-16AU, SIM7600E-H, LM2596S-5.0 and LM2596S-ADJ. 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 Dashcam KiCad files?
From the Stevemwa/FMS_ESP32 repository on GitHub, at the commit this page was made from: the board is PCB_Design/Dashcam/Dashcam.kicad_pcb and its schematic PCB_Design/Dashcam/Dashcam.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dashcam design in my own project?
Its repository states no licence, so its author keeps all rights: ask Stevemwa before reusing the design.