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2 layers44 × 44 mmEspSensorModule, the printed circuit board in 3D
Size
44 × 44 mm
Copper layers
2
Thickness
1.6 mm
Parts
37
Nets
33
Pads
102
Tracks, vias
195, 16
Pours
2
Routed
Yes
KiCad
KiCad 4
Created
20 Aug 2018
Updated
8 Jul 2022

Overview

EspSensorModule is an open-source printed circuit board by gvoigtlaender, from the gvoigtlaender/EspSensorModule repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 44 × 44 mm with 37 parts on 33 nets, routed with 195 tracks and 16 vias.

It is built around the ESP-12F and BC847. Its parts include 11 connectors, 10 resistors, 3 ICs, 2 capacitors and 2 diodes. It belongs with the ESP8266 and AVR (ATmega, ATtiny) boards of this library.

Main components

2

README

README.md

EspSensorModule

Attiny, Reed-Relay, ESP8266, DTH

Project goals:

  • timed meassurement of Temperature & Humidity
  • battery driven (18650) with internal voltage meassurement
  • small footprint
  • optional display of status
  • publish values via mqtt

Items on store:

  • ESP8266 microcontroller with wifi
  • DTH11 / DTH22 temperature sensor
  • ATtiny ultra low power microcontroller for timer-control
  • 1A05 REED Relays
  • SSD1306 128x32px OLED display
  • BC846 npn transistor

Schema:

Schema

PCB:

Front side Back side

Parts

37
QtyValueFootprintReferences
6 EspSensorModule:TestPinJ6, J7, J8, J9, J10, J11
510kResistors_SMD:R_0805_HandSolderingR6, R7, R8, R9, R10
4MountingHole_3mmMounting_Holes:MountingHole_3mmREF01, REF2, REF3, REF4
1100nFCapacitors_THT:CP_Radial_D4.0mm_P2.00mmC2
113kResistors_SMD:R_0805_HandSolderingR1
11703ATO_SOT_Packages_SMD:SOT-223U2
11MResistors_SMD:R_0805_HandSolderingR2
11kResistors_SMD:R_0805_HandSolderingR3
122kResistors_SMD:R_0805_HandSolderingR5
14.7kResistors_SMD:R_0805_HandSolderingR4
147uFCapacitors_THT:CP_Radial_D4.0mm_P2.00mmC1
1ATTINYLEDs:LED_0805_HandSolderingD1
1ATTINY 13A / 85EspSensorModule:SOP-SOIC-8_3.9x4.9mm_Pitch1.27mmU1
1BATPin_Headers:Pin_Header_Straight_1x02_Pitch2.54mmJ1
1BC847TO_SOT_Packages_SMD:SOT-23Q1
1DDiodes_SMD:D_SMA_Handsoldering1N1
1DISPLAYSocket_Strips:Socket_Strip_Straight_1x04_Pitch2.54mmJ3
1DTHPin_Headers:Pin_Header_Straight_1x03_Pitch2.54mmJ4
1ESPLEDs:LED_0805_HandSolderingD2
1ESP-12FESP8266:ESP-12E_SMDU3
1FlashButtons_Switches_SMD:SW_SPST_TL3342SW2
1IFCEspSensorModule:Pin_Header_Angled_1x04_Pitch2.54mm_1J5
1REED 1A05EspSensorModule:Relay_ReedJ2
1ResetButtons_Switches_SMD:SW_SPST_TL3342SW1

The 36 most common of 37 parts.

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Questions

How big is the EspSensorModule PCB?

It measures 44 × 44 mm and has 2 copper layers, 1.6 mm thick.

What parts does the EspSensorModule use?

37 parts, built around the ESP-12F and BC847. 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 EspSensorModule KiCad files?

From the gvoigtlaender/EspSensorModule repository on GitHub, at the commit this page was made from: the board is PCB/EspSensorModule.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the EspSensorModule 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).