4 layers214 × 142.6 mm
Unmechanical sweepish
ebastler/UnMechanical
Capacitive touch keyboard running QMK firmware
168 parts13CERN-OHL-P-2.0
2 layers42.1 × 73.3 mm
Car tracker circuit
crosbee/h2trackAn telemetry tracker designed for an ESP32 with an easy api to integrate trackers and inputs with accompanying software to view live data and to pass inputs.
- Size
- 42.1 × 73.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 71
- Pads
- 191
- Tracks, vias
- 394, 36
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 24 Nov 2024
- Updated
- 19 Dec 2024
Overview
Car tracker circuit is an open-source printed circuit board by crosbee, from the crosbee/h2track repository on GitHub. It is a 2-layer board of 42.1 × 73.3 mm with 59 parts on 71 nets, routed with 394 tracks and 36 vias.
It is built around the ESP32-DEVKITC-32UE, AP63205WU and 74HC4051, with the AO3400A among its other parts. Its parts include 19 resistors, 10 capacitors, 6 ICs, 5 diodes and 3 transistors. It belongs with the ESP32 boards of this library.
Main components
4
ESP32-DEVKITC-32UE
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
AP63205WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.8V~32V 5V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
74HC4051
SOP-16-40℃~+85℃ 1 170MHz 28ns 29ns 3V~9V 5ns 5pF 80Ω 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.mdh2Track
An telemetry tracker designed for an ESP32 with an easy api to integrate trackers and inputs with accompanying software to view live data and to pass inputs. Built for use to track and adjust hydrogen cars remotely however can be easily adjusted for any other purpose.
Requirements
- Rust
- PlatformIO
Installation & Usage
Uploading Firmware
To Flash
- Copy platformio_template.ini to platformio.ini
- Flash receiver firmware using
pio run -e receiver -t upload - Look at the receivers serial output to determine its mac address, then add that address in the platformio.ini file. After these steps you can flash any type using:
pio run -e [TYPE] -t uploadTo run client
- Build software using
cargo build --release - Run the executable found in target/release/h2Track... with the serial port provided as an argument.
Adjusting for other use cases
The software for the gui does not need to be modified, as it dynamically creates the trackers based on the info sent by the receiver. To track/adjust something else, create the necessary functions regarding info of the tracker and updating and transmitting the tracker/function.
PCB & Circuit
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The PCB and circuit were made in KiCAD. The current version is the second prototype and has not been tested. The PCB is designed specifically for a tracking hydrogen cars with the following trackers/features:
- Tracking voltage of:
- Battery
- Fuel Cell
- Custom
- Tracking current of:
- Battery
- Fuel Cell
- Custom
- Powered entirely from battery source
- Tracks temperature of two thermistors
- Can control:
- Fan speed
- Hydrogen valves
- Periodic fuel cell shorting
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | Screw_Terminal_01x02 | KF301-2P:HANDSON_KF301-2P | AMPS3, BATT_IN1, BATT_OUT1, FAN_OUT1, FC_IN1, FC_OUT1, VALV_INP1 |
| 6 | 6.8k | Resistor_SMD:R_0805_2012Metric | R2, R4, R6, VR2, VR4, VR6 |
| 5 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R5, R7, TH1R2, TH2R2 |
| 5 | 10kR | Resistor_SMD:R_0805_2012Metric | R1, R10, R11, R12, R14 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric | C1, C4, C6, C7 |
| 3 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D4 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R8, R9, R13 |
| 3 | 1nF | Capacitor_SMD:C_0805_2012Metric | C2, C3, C5 |
| 3 | 20k | Resistor_SMD:R_0805_2012Metric | VR1, VR3, VR5 |
| 3 | 22µF | Capacitor_SMD:C_0805_2012Metric | C8, C9, C10 |
| 3 | ACS712xLCTR-20A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U3, U4 |
| 3 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q4, Q5 |
| 2 | LED | LED_THT:LED_D3.0mm | D3, D5 |
| 1 | 3V3_PAD | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H2 |
| 1 | 4.7 µH | easyeda2kicad:IND-SMD_L4.0-W4.0_FNR40XXS | L2 |
| 1 | 74HC4051 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | AP63205WU | Package_TO_SOT_SMD:TSOT-23-6 | U5 |
| 1 | ESP32-DEVKITC-32U | ESP32-DEVKITC-32U:MODULE_ESP32-DEVKITC-32U | U7 |
| 1 | GND_PAD | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1 |
| 1 | THERM1 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J2 |
| 1 | THERM2 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J3 |
| 1 | V_SENS | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1 |
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Questions
How big is the Car tracker circuit PCB?
It measures 42.1 × 73.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Car tracker circuit use?
59 parts, built around the ESP32-DEVKITC-32UE, AP63205WU, 74HC4051 and AO3400A. 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 Car tracker circuit KiCad files?
From the crosbee/h2track repository on GitHub, at the commit this page was made from: the board is circuit/car_tracker_circuit.kicad_pcb and its schematic circuit/car_tracker_circuit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Car tracker circuit design in my own project?
Its repository states no licence, so its author keeps all rights: ask crosbee before reusing the design.