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Bitraf hydroponics

bitraf·bitraf-hydroponics·board_1.1/bitraf_hydroponics.kicad_pcb

Bitraf hydroponics PCB layout, top view — open source ESP8266 board by bitraf

About the Bitraf hydroponics PCB

Bitraf hydroponics is an open source ESP8266 PCB design by bitraf, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 50 mm, with 40 components from 31 distinct parts.

Its main chip is the ESP-12F, from the ESP8266 family. Other key parts include the TPS54202 and AP2114H-3.3TRG1. By type, the board carries 16 connectors, 8 capacitors, 6 resistors, 3 ICs, 3 transistors and 3 diodes.

It belongs with the iot & wireless designs in this gallery.

From the project

TODO: * Rearrange MOSFETs so they work as expected

TODO: * Rearrange MOSFETs so they work as expected

QUESTIONS: * Do we need the exra pins going to GND on rotary encoder and programing headers if we go for the jumper solution?

DONE: Added "0ohm" pull-up between VCC -> CHPD Added 10k pull-up between GPIO2 -> 3.3v Added jumper connector to pull-down RESET and GPIO0 -> GND

Main components on the Bitraf hydroponics

TPS54202AP2114H-3.3TRG1ESP-12F

Bitraf hydroponics bill of materials (BOM)

40 components, 31 distinct parts.

QtyPartRefs
1
TPS54202
U1
1
AP2114H-3.3TRG1
U2
1
ESP-12F
U3
3
DMN2041L-7
Q1, Q2, Q3
1
12V
P1
1
SWITCH_1
P2
1
SWITCH_2
P3
1
SWITCH_3
P4
1
LCD
P5
1
ROT_ENC
P6
1
I2C_1
P7
1
I2C_2
P8
1
I2C_3
P9
1
I2C_4
P10
1
BUZZER
P11
1
LDR
P12
1
TEMP_HUM
P13
1
PROGRAMMER
P14
1
SPI
P15
1
RADIO_433
P16
Show 11 more
QtyPartRefs
3
S1MTR
D1, D2, D3
1
15u
L1
2
0.1u
C1, C3
1
10u
C2
1
75p
C4
2
22u
C5, C6
2
4.7µ
C7, C8
3
10k
R1, R2, R3
1
100k
R4
1
13.3k
R5
1
R
R6

Bitraf hydroponics design files

The KiCad project lives in the bitraf/bitraf-hydroponics repository on GitHub; these links point at the commit this page was built from.

Bitraf hydroponics: common questions

What microcontroller does the Bitraf hydroponics use?

The Bitraf hydroponics is built around the ESP-12F, from the ESP8266 family.

How big is the Bitraf hydroponics PCB?

The Bitraf hydroponics measures 100 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bitraf hydroponics?

40 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bitraf hydroponics design files?

From the bitraf/bitraf-hydroponics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bitraf hydroponics design in my own project?

Yes, under the terms of its MIT license, which bitraf chose for the repository.

Can I test firmware for the Bitraf hydroponics 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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