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Esp8266-web eload

dimtass·esp8266-web-eload·kicad/eload/eload.kicad_pcb

Esp8266-web eload PCB layout, top view — open source ESP8266 board by dimtass

About the Esp8266-web eload PCB

Esp8266-web eload is an open source ESP8266 PCB design by dimtass, published on GitHub. It is a 2-layer board measuring 115 × 77 mm, with 70 components from 35 distinct parts.

Its main chip is the ESP-12F, from the ESP8266 family. Other key parts include the FT232RL, AMS1117-3.3, SP6661, MCP6H04 and MCP4821. By type, the board carries 31 resistors, 18 capacitors, 6 ICs, 4 connectors, 4 diodes and 3 transistors.

It belongs with the iot & wireless and usb & debug tools designs in this gallery.

From the project

This is a PCB/FW project for a WiFi enabled electronic load

esp8266-web-eload --- This project is how to build an electronic load with a web interface by using the esp8266-E12 module and some other electronic components. This version is using the Arduino ESP8266 for simplicity, but I would like to make this soon also baremetal and use the ESP API instead.

The main components I've used are: FDP6030BL: N-Channel Logic Level MOSFET. This mosfet is features 40A, 30V, Rds(on)=0.024Ω @ Vgs=4.5V, 175oC max junction temp MCP4821: 12-bit SPI DAC with an internal Vref. This one has an internal 2.048V reference and a 2x gain, therefore the Vref can be up to…

Esp8266-web eload, from the project README
From the project README

Main components on the Esp8266-web eload

ESP-12FFT232RLAMS1117-3.3SP6661MCP6H04MCP4821

Esp8266-web eload bill of materials (BOM)

70 components, 35 distinct parts.

QtyPartRefs
1
ESP-12F
U201
1
FT232RL
U301
1
AMS1117-3.3
U401
1
SP6661
U402
1
MCP6H04
U501
1
MCP4821
U601
2
MMBT3904
Q301, Q302
1
FDP6030BL
Q501
2
Conn_01x15_Male
J201, J202
1
USB_B_Micro
J301
1
LOAD
J501
1
Heatsink
HS501
1
RESET_BTN
SW201
1
FLASH_BTN
SW202
1
LED
D201
1
TXLED
D301
1
RXLED
D302
1
LSM115JE3/TR13
D401
1
MH2029-400Y
FB401
1
1u
C201
Show 15 more
QtyPartRefs
2
100n
C202, C601
4
100nF
C301, C302, C403, C501
7
10uF
C303, C405, C406, C407, C408, C502, C503
1
10nF
C401
1
10uF 25V
C402
1
220uF
C404
1
1uF
C602
3
470
R201, R203, R209
1
0 (NC)
R202
10
10K
R204, R205, R206, R207, R208, R303, R502, R503 +2
3
12K
R301, R302, R504
2
R
R304, R305
1
1K
R501
10
10Ω/1W
R505, R506, R507, R508, R509, R510, R511, R512 +2
1
15K
R515

Esp8266-web eload design files

The KiCad project lives in the dimtass/esp8266-web-eload repository on GitHub; these links point at the commit this page was built from.

Esp8266-web eload: common questions

What microcontroller does the Esp8266-web eload use?

The Esp8266-web eload is built around the ESP-12F, from the ESP8266 family.

How big is the Esp8266-web eload PCB?

The Esp8266-web eload measures 115 × 77 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp8266-web eload?

70 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp8266-web eload design files?

From the dimtass/esp8266-web-eload repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Esp8266-web eload design in my own project?

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

Can I test firmware for the Esp8266-web eload 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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