Himinds boosting innovation embedded env sensor hw

HiMinds·himinds-boosting-innovation-embedded-env-sensor-hw·kicad/hm-env-sensor.kicad_pcb

Himinds boosting innovation embedded env sensor hw PCB layout, top view — open source ESP32 board by HiMinds

About the Himinds boosting innovation embedded env sensor hw PCB

Himinds boosting innovation embedded env sensor hw is an open source ESP32 PCB design by HiMinds, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 79 × 79 mm, with 86 components from 52 distinct parts.

Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the ADXL345, CH340T(SSOP20W), BAT54C(SOT23-3), BL4054B-42TPRN(SOT23-5) and BME680. By type, the board carries 33 resistors, 22 capacitors, 11 ICs, 4 diodes, 4 inductors and 3 transistors.

It belongs with the sensors, iot & wireless and power & battery designs in this gallery.

From the project

HiMinds Open Source Wireless Environmental Sensor HW

Carbon dioxide (CO₂) levels Temperature with ±1.0°C accuracy Barometric pressure with 1 hPa absolute accuracy Humidity with ±3% accuracy Volatile organic compounds (VOC) gas sensor Tamper detection * Sound level meter

The project is described in our Medium articles.

The enclosure is called CBRS01VWH and is made by CamdenBoss.

The first version of the hardware, was based on the work done by OLIMEX. Link to their project page For other credits please refer to our Medium ariticles.

Himinds boosting innovation embedded env sensor hw, from the project README — From the project README

Main components on the Himinds boosting innovation embedded env sensor hw

ADXL345 CH340T(SSOP20W)BAT54C(SOT23-3)BL4054B-42TPRN(SOT23-5)ESP-WROOM-32 BME680 BQ27441-G1 MH-Z19B SY8089AAAC(SOT23-5)MAX4466TPS61202DRC

Himinds boosting innovation embedded env sensor hw bill of materials (BOM)

86 components, 52 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ADXL345	LGA-14_3x5mm_P0.8mm_LayoutBorder1x6y	U1
1	CH340T(SSOP20W)	SSOP-20W	U2
1	BAT54C(SOT23-3)	SOT23-3	U3
1	BL4054B-42TPRN(SOT23-5)	SOT-23-5	U4
1	ESP-WROOM-32	ESP-WROOM-32_MODULE	U5
1	BME680	Bosch_LGA-8_3x3mm_P0.8mm_ClockwisePinNumbering	U6
1	BQ27441-G1	PDSO-N12	U7
1	MH-Z19B	MH-Z19B	U8
1	SY8089AAAC(SOT23-5)	SOT-23-5	U9
1	MAX4466	SOT-353_SC-70-5	U10
1	TPS61202DRC	Texas_S-PVSON-N10_ThermalVias	U11
1	Q12MHZ/20PF/10PPM/4P/3.2X2.5MM Q12MHz/20pF/10ppm/4P/3.2x2.5mm	TSX-3.2x2.5mm_GND(3)	Q1
2	BC817-40(SOT23)	SOT23	Q2, Q3
1	CONN_02X06_ODD_EVEN Conn_02x06_Odd_Even	PinHeader_2x06_P2.54mm_Vertical	J1
1	DW02S	LIPO_BAT-CON2DW02R	BAT1
1	WPM2015-3 WPM2015-3/TR	SOT23	FET1
1	Microphone	MIC_CMA-4544PF-W	MK1
2	IT-1185AU2-160G-G IT-1185AU2-160G-G-TR	IT1185AU2_V2	RST1, RST2
1	MISB-SWMM-5B-LF(USB_MICRO)	USB_Micro_B_Male_UJ2-MIBH-4-SMT-TR	USB-UART1
1	LED/YELLOW/0603	LED_0603_KA	CHARGING1

Show 32 more

Qty	Part	Footprint	Refs
1	LED/GREEN/0603	LED_0603_KA	PWRLED1
2	1N5822/SS34/SMA	SMA-KA	D1, D2
1	LED/GREEN/0603	LED_0603_KA	D4
1	LED/RED/0603	LED_0603_KA	D6
2	Ferrite_Bead_Small	L_0603_5MIL_DWS	FB1, FB2
1	2.2uH/1.5A/DCR<0.1R/CD32	CD32	L1
1	LPS3015-222ML	L_Wuerth_MAPI-3015	L2
1	4.7uF/50V/20%/Y5V/C0603	C_0603_5MIL_DWS	C1
5	100nF/50V/20%/Y5V/C0603	C_0603_5MIL_DWS	C2, C6, C8, C9, C13
2	27pF/50V/5%/C0G/C0603	C_0603_5MIL_DWS	C3, C4
1	22uF/6.3V/20%/X5R/C0603	C_0603_5MIL_DWS	C5
3	47uF/6.3V/20%/X5R/C0805	C_0805_5MIL_DWS	C7, C12, C17
1	1.0uF/16V/10%/Y5V/C0603	C_0603_5MIL_DWS	C10
1	0.47uF/50V/20%/Y5V/C0603	C_0603_5MIL_DWS	C11
1	10nF/50V/20%/Y5V/C0603	C_0603_5MIL_DWS	C14
1	10UF/C0603 10uF/C0603	C_0603_5MIL_DWS	C15
1	100PF/C0603 100pF/C0603	C_0603_5MIL_DWS	C16
4	10UF/6.3V/X7R/C0603 10uF/6.3V/X7R/C0603	C_0603_5MIL_DWS	C18, C20, C21, C22
1	1UF/6.3V/X7R/C0603 1uF/6.3V/X7R/C0603	C_0603_5MIL_DWS	C19
3	330/R0603	R_0603_5MIL_DWS	R1, R22, R24
3	220R/R0603	R_0603_5MIL_DWS	R2, R3, R6
6	1K/R0603 1k/R0603	R_0603_5MIL_DWS	R4, R5, R13, R23, R25, R29
4	10K/R0603 10k/R0603	R_0603_5MIL_DWS	R7, R9, R19, R26
5	4.7K/R0603 4.7k/R0603	R_0603_5MIL_DWS	R8, R15, R16, R17, R20
1	2.2K/R0603 2.2k/R0603	R_0603_5MIL_DWS	R10
4	NA/R0603	R_0603_5MIL_DWS	R11, R14, R32, R33
1	4.99k/1%/R0603	R_0603_5MIL_DWS	R12
1	0.01/1%/R1206	R_1206_5MIL_DWS	R18
1	1.1k/1%/R0603	R_0603_5MIL_DWS	R21
2	1M/R0603	R_0603_5MIL_DWS	R27, R28
1	20K/R0603 20k/R0603	R_0603_5MIL_DWS	R30
1	10K 10k	R_0603_5MIL_DWS	R31

Himinds boosting innovation embedded env sensor hw design files

The KiCad project lives in the HiMinds/himinds-boosting-innovation-embedded-env-sensor-hw repository on GitHub; these links point at the commit this page was built from.

Layoutkicad/hm-env-sensor.kicad_pcb
BOMhm-env-sensor-bom_rev_B.xls

Himinds boosting innovation embedded env sensor hw: common questions

What microcontroller does the Himinds boosting innovation embedded env sensor hw use?

The Himinds boosting innovation embedded env sensor hw is built around the ESP-WROOM-32, from the ESP32 family.

How big is the Himinds boosting innovation embedded env sensor hw PCB?

The Himinds boosting innovation embedded env sensor hw measures 79 × 79 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Himinds boosting innovation embedded env sensor hw?

86 components, from 52 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Himinds boosting innovation embedded env sensor hw design files?

From the HiMinds/himinds-boosting-innovation-embedded-env-sensor-hw repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Himinds boosting innovation embedded env sensor hw design in my own project?

Yes, under the terms of its Apache-2.0 license, which HiMinds chose for the repository.

Can I test firmware for the Himinds boosting innovation embedded env sensor hw without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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