2 layers83.8 × 63.5 mm E IoT mk4, the printed circuit board in 3D

E IoT mk4

Shemes, drawings & other documentation

Size: 83.8 × 63.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 66
Nets: 79
Pads: 249
Tracks, vias: 1,169, 89
Pours: 2
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 27 Nov 2023
Updated: 27 Nov 2023

Overview

E IoT mk4 is an open-source printed circuit board by bublinak, from the bublinak/eiot-hw repository on GitHub. It is a 2-layer board of 83.8 × 63.5 mm with 66 parts on 79 nets, routed with 1,169 tracks and 89 vias.

It is built around the DHT11, 74HC08D and 74HC595, with the LF50CDT-TR, BCP55 and S8050 among its other parts. Its parts include 21 resistors, 12 diodes, 5 ICs, 5 connectors and 4 capacitors. It belongs with the home automation and IoT boards and the ESP8266 and NXP (LPC, Kinetis, i.MX RT) boards of this library.

Main components

README

README.md

eiot-hw

Schemes, drawings & other documentation

Parts

Qty	Value	Footprint	References
8	1k	Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R10, R12, R13, R14, R15, R16, R17, R18
8	Y	LED_SMD:LED_0805_2012Metric_Castellated	D2, D3, D7, D8, D9, D10, D11, D12
3	1K	Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R9, R20, R22
3	470	Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R4, R5, R6
2		Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	SERVO1, SERVO2
2	10K	Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R3, R11
2	4K7	Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder	R2, R8
2	74HC08	Package_SO:SOIC-14_3.9x8.7mm_P1.27mm	U4, U5
1		Connector_JST:JST_XH_S3B-XH-A-1_1x03_P2.50mm_Horizontal	PWR_OUT1
1		Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Horizontal	SPI1
1		Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Horizontal	IIC1
1	100nF	Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C3
1	100nF/50V	Capacitor_SMD:C_0603_1608Metric	C1
1	10uF	Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder	C2
1	12K	Resistor_SMD:R_0603_1608Metric	R7
1	22K	Resistor_SMD:R_0603_1608Metric	R19
1	47nF	Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C4
1	74HC595	Package_SO:SOIC-16_3.9x9.9mm_P1.27mm	U3
1	BCP55	Package_TO_SOT_SMD:SOT-223	Q4
1	Buzzer	Buzzer_Beeper:MagneticBuzzer_ProSignal_ABT-410-RC	BZ1
1	DHT11	Sensor:Aosong_DHT11_5.5x12.0_P2.54mm	U2
1	GREEN_LED	LED_SMD:LED_0805_2012Metric_Castellated	D4
1	Jack-DC 5,5mm	Connector_BarrelJack:BarrelJack_Horizontal	J1
1	LED-RGB	LED_SMD:LED_RGB_5050-6	D1
1	LF50CDT	Package_TO_SOT_SMD:TO-252-2	U1
1	LUA-V2	Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical	J3
1	LUA-V3	Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical	J4
1	NODEMCU	Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical	J2
1	Polyfuse 1A	Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder	F1
1	RED_LED	LED_SMD:LED_0805_2012Metric_Castellated	D6
1	Relay	Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C	K1
1	S8050	Package_TO_SOT_SMD:SOT-23	Q1
1	SW_DIP_x06	Package_DIP:DIP-12_W7.62mm_Socket_LongPads	SW2
1	SW_Push_6mm	Button_Switch_THT:SW_PUSH_6mm_H5mm	SW1A1
1	SW_Reed	Crystal:Crystal_AT310_D3.0mm_L10.0mm_Horizontal	SW1
1	Screw_Terminal_01x03	TerminalBlock:TerminalBlock_bornier-3_P5.08mm	RELAY-CONN1
1	UART	Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical	J8
1	WDYJ_GM4516	OptoDevice:R_LDR_4.9x4.2mm_P2.54mm_Vertical	R1
1	YELLOW_LED	LED_SMD:LED_0805_2012Metric_Castellated	D5

The 61 most common of 66 parts.

Questions

How big is the E IoT mk4 PCB?

It measures 83.8 × 63.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the E IoT mk4 use?

66 parts, built around the DHT11, 74HC08D, 74HC595 and LF50CDT-TR. 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 E IoT mk4 KiCad files?

From the bublinak/eiot-hw repository on GitHub, at the commit this page was made from: the board is e-IoT_mk4.kicad_pcb and its schematic e-IoT_mk4.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the E IoT mk4 design in my own project?

Its repository states no licence, so its author keeps all rights: ask bublinak before reusing the design.

Category and platform

Home automation and IoT ESP8266 NXP (LPC, Kinetis, i.MX RT)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/bublinak-eiot-hw" title="E IoT mk4 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/bublinak-eiot-hw.jpg" alt="E IoT mk4" width="1200" height="900">

A picture that opens the board, for a README

[![E IoT mk4](https://pcbkit.io/embed/boards/bublinak-eiot-hw.jpg?size=s)](https://pcbkit.io/boards/bublinak-eiot-hw)

Source

Repository: bublinak/eiot-hw
Board file: e-IoT_mk4.kicad_pcb
Commit: 86d3e13
Licence: Not stated

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