4 layers87.6 × 46.7 mm
Modbus to x
joachimda/modbus-to-x
ESP32 based hardware and firmware stack that bridges modbus RTU devices to modern network services.
58 parts5MIT
2 layers38.1 × 38.1 mm
ESP Sensor Board
emwjacobson/ESP_Sensor_Board1- Size
- 38.1 × 38.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 61
- Pads
- 169
- Tracks, vias
- 266, 49
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 1 Jun 2022
- Updated
- 1 Jun 2022
Overview
ESP Sensor Board is an open-source printed circuit board by emwjacobson, from the emwjacobson/ESP_Sensor_Board repository on GitHub. It is a 2-layer board of 38.1 × 38.1 mm with 43 parts on 61 nets, routed with 266 tracks and 49 vias.
It is built around the CH340C, ESP32-WROOM-32D and HP203B, with the LM75BDP, LMR62421XMF and LTR-303ALS-01 among its other parts. Its parts include 14 capacitors, 8 resistors, 8 ICs, 3 diodes and 3 transistors. It belongs with the sensors and measurement boards and the ESP32 boards of this library.
Main components
12
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
HP203B
QFN-8(3.8x3.6)-40℃~+85℃ 1.8V~3.6V 100nA 150pa 30Kpa~1.2bar 50pa I2C No QFN-8(3.8x3.6) Pressure Sensors ROHSHOPERFPressure Sensors
LM75BDP
TSSOP8-55℃~+125℃ 10ms 11bit 2.8V~5.5V I2C Temperature threshold monitoring、Low-power standby、Hardware comparator / independent temperature control output ±2℃ TSSOP8 Temperature Sensors ROHSNXP SemiconductorsTemperature Sensors
LMR62421XMF
SOT-23-5-40℃~+125℃@(TJ) 1 1.6MHz 2.1A 2.7V~24V 2.7V~5.5V 7mA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
LTR-303ALS-01
DFN-6(2x2)-30℃~+70℃ 0.7mm 16bit 2.4V~3.6V 2mm 2mm 64klx I2C Light Intensity Low power/sleep mode、Spectral correction/filtering、Adjustable gain control、Interrupt/event trigger、Built-in temperature compensation DFN-6(2x2) Ambient Light Sensors ROHSLite-OnAmbient Light Sensors
RT0603DRE0710KL
0603-55℃~+155℃ 100mW 10kΩ 75V Thin Film Resistor ±0.5% ±50ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
DSS34
SOD-123FL-50℃~+125℃ 1 Independent 3A 40V 500uA@40V 550mV@3A SOD-123FL Schottky Diodes ROHSBORNSchottky Diodes
SS8050
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
CY43-6.8UH
SMD,4.5x4mm1.35A 100mΩ 6.8uH Drum-core inductor ±20% SMD,4.5x4mm Power Inductors ROHSSHOU HANInductors (SMD)RT0603DRE0710K2L
0603-55℃~+155℃ 10.2kΩ 100mW 75V Thin Film Resistor ±0.5% ±50ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
RC0603FR-07100KL
UncategorisedUnknown maker
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C5, C8, C9, C12 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R5, R6 |
| 3 | 1A/20V | Diode_SMD:D_SOD-123F | D1, D2, D3 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 3 | Q_NPN_BEC | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 15pF | Capacitor_SMD:C_0603_1608Metric | C10, C11 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6, C14 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C1, C7 |
| 2 | 6.8uH/1.2A | ESP_Sensor_Board:L_4.5x3.2 | L1, L2 |
| 2 | Solder_Pad | ESP_Sensor_Board:Pad | U7, U8 |
| 1 | 10.2k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 150k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 16.5k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32 | U2 |
| 1 | HP203B | ESP_Sensor_Board:HP203B | U5 |
| 1 | LM75B | Package_SO:MSOP-8_3x3mm_P0.65mm | U4 |
| 1 | LMR62421XMF | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | LTR-303ALS-01 | OptoDevice:Lite-On_LTR-303ALS-01 | U6 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10118194_Horizontal | J1 |
Questions
How big is the ESP Sensor Board PCB?
It measures 38.1 × 38.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP Sensor Board use?
43 parts, built around the CH340C, ESP32-WROOM-32D, HP203B and LM75BDP. 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 ESP Sensor Board KiCad files?
From the emwjacobson/ESP_Sensor_Board repository on GitHub, at the commit this page was made from: the board is ESP_Sensor_Board.kicad_pcb and its schematic ESP_Sensor_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP Sensor Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask emwjacobson before reusing the design.
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