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Esp8266-external temp sensor

theopensourcerer·esp8266-external-temp-sensor·pcb/external-temp-sensor.kicad_pcb

Esp8266-external temp sensor PCB layout, top view — open source ESP8266 board by theopensourcerer

About the Esp8266-external temp sensor PCB

Esp8266-external temp sensor is an open source ESP8266 PCB design by theopensourcerer, published on GitHub. It is a 2-layer board measuring 29.5 × 38.1 mm, with 14 components from 9 distinct parts.

Its main chip is the ESP-12F, from the ESP8266 family. Other key parts include the OKI-78SR. By type, the board carries 5 resistors, 3 connectors, 2 ICs, 2 switches and 2 capacitors.

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

From the project

ESP8266/DS18B20 external temperature sensor project

This is simple board which will connect to one of those DS18B20 temperature sensors which are inside a metal sleeve and designed for external use.

This board will ultimately live in a box outside my polytunnel with a 12V car battery, charged using solar power. One of the new features of this particular design, for me at least, is using a Switching regulator rather than a nomral LDO Linear regulator. I read that trying to drop from 12v to 3.3v is not effecient at all and can generate a lot of heat using a Linear design.

Main components on the Esp8266-external temp sensor

ESP-12FOKI-78SR

Esp8266-external temp sensor bill of materials (BOM)

14 components, 9 distinct parts.

QtyPartRefs
1
ESP-12F
U1
1
OKI-78SR
U2
1
TEMP
P1
1
SERIAL
P2
1
PWR
P3
1
RESET
SW1
1
FLASH
SW2
2
10uF
C1, C2
5
4.7K
R1, R2, R3, R4, R5

Esp8266-external temp sensor design files

The KiCad project lives in the theopensourcerer/esp8266-external-temp-sensor repository on GitHub; these links point at the commit this page was built from.

Esp8266-external temp sensor: common questions

What microcontroller does the Esp8266-external temp sensor use?

The Esp8266-external temp sensor is built around the ESP-12F, from the ESP8266 family.

How big is the Esp8266-external temp sensor PCB?

The Esp8266-external temp sensor measures 29.5 × 38.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp8266-external temp sensor?

14 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp8266-external temp sensor design files?

From the theopensourcerer/esp8266-external-temp-sensor repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Esp8266-external temp sensor design in my own project?

The repository has no license, so all rights stay with theopensourcerer. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Esp8266-external temp sensor without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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