Skip to the content
2 layers92 × 82 mmLakeTemp, the printed circuit board in 3D

One of my first electronic projects 2011 based on a breadboard. It has lasted almost 10 years of continuous operation.

Size
92 × 82 mm
Copper layers
2
Thickness
1.6 mm
Parts
62
Nets
57
Pads
208
Tracks, vias
386, 64
Pours
4
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
15 May 2021
Updated
27 Mar 2022

Overview

LakeTemp is an open-source printed circuit board by foorschtbar, from the foorschtbar/LakeTempESP repository on GitHub. It is a 2-layer board of 92 × 82 mm with 62 parts on 57 nets, routed with 386 tracks and 64 vias.

It is built around the ESP-12E, DS18B20 and ICL7660N, with the PCF8574T, GL5528 and S8050 among its other parts. Its parts include 18 resistors, 11 connectors, 6 capacitors, 5 ICs and 5 diodes. It belongs with the ESP8266 boards of this library.

Main components

7

README

README.md

LakeTempESP

WIP...

Hardware 2021

Hardware 2011-2021

One of my first electronic projects 2011 based on a breadboard. It has lasted almost 10 years of continuous operation.

  • Arduino Uno
  • Ethernet Shield (WIZnet W1500)
  • BT42008 LCD (HD44780 4x20)
  • WiFi AP in Client Mode
  • 5V Power Suppy for the Arduino
  • 12V Power Suppy for the AccessPoint

ToDo

  • Fix random HW/SW watchdog reboots while uploading data
  • Use Light Sensor for nice things
  • Trigger data upload from WebUI
  • Show last und next upload on Dashboard
  • Add MAC Address to JSON Msg
  • Flash/Blink LED on Upload
  • Flash/Blink LED on Button press
  • Fade LED in Idle State

Parts

62
QtyValueFootprintReferences
610KResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR5, R6, R7, R10, R12, R16
54,7KResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR8, R9, R11, R13, R15
410uFCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1, C2, C3, C4
3SolderJumper_2_OpenJumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabelsADR-A1, ADR-A2, ADR-A3
2150Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR1, R3
268Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR2, R4
2Conn_01x02_FemaleTerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_HorizontalJ1, J5
2PWR 3.3VLED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolderD2, D4
2PWR 5VLED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolderD1, D3
2VAL**foorschtbar:mouse-bite-2mm-slotmouse-bite-2mm-slot, mouse-bite-2mm-slot
11000uFCapacitor_SMD:CP_Elec_10x10.5C6
1100KResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR18
1100nFCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC5
110KPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV1
1220KResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR17
1Conn_01x02_FemaleConnector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_VerticalJ6
1Conn_01x03_FemaleTerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_HorizontalJ4
1Conn_01x03_MaleConnector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_VerticalJ10
1Conn_01x04_FemaleConnector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_VerticalJ9
1Conn_01x04_FemaleConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ11
1Conn_01x04_MaleConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ7
1Conn_01x06_MaleConnector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_VerticalJ3
1Conn_01x06_MaleConnector_JST:JST_PH_S6B-PH-K_1x06_P2.00mm_HorizontalJ2
1Conn_01x14_FemaleConnector_PinHeader_2.54mm:PinHeader_1x14_P2.54mm_VerticalJ8
1DS18B20Package_TO_SOT_THT:TO-92_InlineU5
1ESP-12ERF_Module:ESP-12EU4
1FLASHButton_Switch_THT:SW_PUSH_6mm_H5mmSW2
1GL5528OptoDevice:R_LDR_5.1x4.3mm_P3.4mm_VerticalR14
1ICL7660Package_SO:SOP-8_3.9x4.9mm_P1.27mmU2
1NCP1117-3.3_SOT223Package_TO_SOT_SMD:SOT-223-3_TabPin2U1
1PCF8574Package_SO:SOIC-16W_7.5x10.3mm_P1.27mmU3
1RESETButton_Switch_THT:SW_PUSH_6mm_H5mmSW1
1S8050Package_TO_SOT_SMD:SOT-23Q1
1SolderJumper_3_OpenConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJP2
1SolderJumper_3_OpenJumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mmJP1
1WS2812BLED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mmD5

The 56 most common of 62 parts.

Similar boards

  • 2 layersMxpad, the printed circuit board in 3D

    Mxpad

    mordae/mxpad

    Personal XInput controller project for ESP32

    20 parts1ISC
  • 2 layers190 × 111 mmRetroCom, the printed circuit board in 3D

    RetroCom

    SamyIOoOI/RetroCom

    A 4-Station one-to-one two-way INTERCOM built around the AT89C52-PI24 RetroMCU (8051 Core).

    92 partsGPL-3.0
  • 2 layers100 × 45 mmTranspOtterNG, the printed circuit board in 3D

    TranspOtterNG

    Jana-Marie/transpOtterNG

    Next Generation of TranspOtter.

    63 parts51
  • 2 layers78 × 46.3 mmSodastream, the printed circuit board in 3D

    Sodastream

    gschwaer/sodastream-power-mod

    Because the Internet of Things needed a smart soda maker.

    48 parts2Unlicense
  • 2 layers107 × 77 mmProjekt, the printed circuit board in 3D

    Projekt

    OChomicka/EECD-22-1

    Group 1 project from electronically and electrical circuits designing

    51 parts
  • 6 layersCanSat 2019, the printed circuit board in 3D

    CanSat 2019

    ApoapsisHGV/CanSat2019-electronics

    Circuit and PCB design files related to our 2019 CanSat competition

    155 parts1MIT
  • 2 layers73.5 × 92.8 mmBTL ESD, the printed circuit board in 3D

    BTL ESD

    DONGKHOA/SMART_LED_CONTROL

    152 parts

Questions

How big is the LakeTemp PCB?

It measures 92 × 82 mm and has 2 copper layers, 1.6 mm thick.

What parts does the LakeTemp use?

62 parts, built around the ESP-12E, DS18B20, ICL7660N and PCF8574T. 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 LakeTemp KiCad files?

From the foorschtbar/LakeTempESP repository on GitHub, at the commit this page was made from: the board is _pcb/LakeTemp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the LakeTemp design in my own project?

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