2 layers89.7 × 67.5 mm
EnvOpenSensor
Envious-Data/EnvOpenEnvSensor
a simple sensor pcb with a display to show some environment conditions
375 partsGPL-3.0
2 layers89.7 × 67.5 mm
EnvOpenSensor
Envious-Data/EnvOpenEnvSensora simple sensor pcb with a display to show some environment conditions
- Size
- 89.7 × 67.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 347
- Nets
- 107
- Pads
- 938
- Tracks, vias
- 1,997, 418
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Mar 2024
- Updated
- 21 Nov 2024
Overview
EnvOpenSensor is an open-source printed circuit board by Envious-Data, from the Envious-Data/EnvOpenEnvSensor repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 89.7 × 67.5 mm with 347 parts on 107 nets, routed with 1,997 tracks and 418 vias.
It is built around the ATTINY1634-MU, IS31FL3730-QFLS2-TR and SI7021-A20-GM, with the SCD41-D-R2, TCA9406DCT and TLV75533PDBV among its other parts. Its parts include 288 diodes, 31 capacitors, 9 ICs, 8 resistors and 4 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATTINY1634-MU
QFN-20-EP(4x4)-40℃~+85℃ 1.8V~5.5V 10bit 12MHz 16KB 18 1KB 256Byte 8 Bit AVR Built-in FLASH QFN-20-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
IS31FL3730-QFLS2-TR
QFN-24-EP(4x4)-40℃~+85℃ 16 2.7V~5.5V 40mA I2C Over-Temperature Protection (OTP) QFN-24-EP(4x4) LED Drivers ROHSISSILED Drivers
SI7021-A20-GM
DFN-6-EP(3x3)DFN-6-EP(3x3) Temperature and Humidity Sensor ROHSSilicon LabsTemperature And Humidity Sensor
SCD41-D-R2
LGA-20UncategorisedSensirion
TCA9406DCT
SSOP82-Bit Bidirectional 1-MHz, I2C Bus and SMBus Voltage-Level Translator with 8-kV HBM ESDTexas InstrumentsUncategorised
TLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdEnvOpenEnvSensor
a simple sensor pcb with a display to show some environment conditions
Parts
347| Qty | Value | Footprint | References |
|---|---|---|---|
| 288 | LED 0402 10mA | LED_SMD:LED_0402_1005Metric | D1, D10, D11, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112 +272 |
| 8 | 0402 0.1uF | Capacitor_SMD:C_0402_1005Metric | C8, C9, C13, C14, C18, C19, C23, C24 |
| 6 | 10K 0402 | Resistor_SMD:R_0402_1005Metric | R1, R2, R5, R7, R12, R13 |
| 5 | 0402 10uF | Capacitor_SMD:C_0402_1005Metric | C7, C12, C17, C22, C27 |
| 5 | 0402 1uF | Capacitor_SMD:C_0402_1005Metric | C6, C11, C16, C21, C26 |
| 4 | 0.1uF 0402 | Capacitor_SMD:C_0402_1005Metric | C1, C28, C45, C46 |
| 4 | 0402 0.22uF | Capacitor_SMD:C_0402_1005Metric | C10, C15, C20, C25 |
| 4 | 10uF 0402 | Capacitor_SMD:C_0402_1005Metric | C2, C4, C5, C30 |
| 4 | IS31FL3730-QFLS2-TR | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm_ThermalVias | IC1, IC2, IC3, IC4 |
| 4 | M2 Mounting Hole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 2 | 5.1K 0402 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 1 | 1uF 0402 | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | ATtiny1634-M | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U5 |
| 1 | AVR-ISP-6 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J3 |
| 1 | HRO_TYPE-C-31-M-12 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | NetTie_2 | NetTie:NetTie-2_THT_Pad1.0mm | NT2 |
| 1 | SCD41-D-R2 | Sensor:Sensirion_SCD4x-1EP_10.1x10.1mm_P1.25mm_EP4.8x4.8mm | U3 |
| 1 | Si7021-A20 | Package_DFN_QFN:DFN-6-1EP_3x3mm_P1mm_EP1.5x2.4mm | U1 |
| 1 | TCA9406DC | Package_SO:VSSOP-8_2.3x2mm_P0.5mm | U6 |
| 1 | TLV75533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U4 |
Questions
How big is the EnvOpenSensor PCB?
It measures 89.7 × 67.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EnvOpenSensor use?
347 parts, built around the ATTINY1634-MU, IS31FL3730-QFLS2-TR, SI7021-A20-GM and SCD41-D-R2. 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 EnvOpenSensor KiCad files?
From the Envious-Data/EnvOpenEnvSensor repository on GitHub, at the commit this page was made from: the board is EnvOpenSensor-ATTINY/EnvOpenSensor.kicad_pcb and its schematic EnvOpenSensor-ATTINY/EnvOpenSensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EnvOpenSensor 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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