HardLabs

StartTech Valve

Lucasmnascimento94·Smart-Shower·KICAD/MOTOR/StartTech_Valve.kicad_pcb

StartTech Valve PCB layout, top view — open source ESP8266 board by Lucasmnascimento94

About the StartTech Valve PCB

StartTech Valve is an open source ESP8266 PCB design by Lucasmnascimento94, published on GitHub. It is a 4-layer board measuring 155.4 × 116.3 mm, with 101 components from 45 distinct parts.

Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the STM32F411RCTx, AMS1117-3.3 and ADP2108AUJ-1.8. By type, the board carries 29 capacitors, 26 resistors, 14 connectors, 8 LEDs, 6 ICs and 5 switches.

It belongs with the sensors designs in this gallery.

From the project

This is an extended version of the project I made for my computer arquitecture class.

This is an extended version of the project I made for my computer arquitecture class.

-> Remote Start Functionality: Users can activate the shower remotely, allowing the water to reach the desired temperature before they step in—eliminating wait time.

-> Hot Water Monitoring: Tracks the decline of hot water temperature and alerts the user when they are about to run out—especially useful for homes that use hot water tanks.

Main components on the StartTech Valve

ESP-12ESTM32F411RCTxAMS1117-3.3ADP2108AUJ-1.8

StartTech Valve bill of materials (BOM)

101 components, 45 distinct parts.

QtyPartRefs
1
ESP-12E
U1
1
STM32F411RCTx
U2
2
AMS1117-3.3
U3, U6
1
ADP2108AUJ-1.8
U4
1
~
U5
1
LCD
J1
1
Conn_01x04_Pin
J2
1
RJ45
J3
4
Conn_01x03_Pin
J4, J11, J12, J13
1
TSTAT_2
J5
1
ST-LINK
J6
1
Conn_01x02_Pin
J7
1
TSTAT_1
J8
1
Screw_Terminal_01x04
J9
1
TSTAT_3
J10
1
Conn_02x04_Odd_Even
J17
2
C_Polarized
47UF1, 220UF2
4
Conn_01x02_Pin
CTSLED1, ENLED1, RSTLED1, RTSLED1
1
Fuse
F1
1
~
PJ-082BH1
Show 25 more
QtyPartRefs
1
P120PK-Y25BR10K
TT Electronics/BI
POT1
5
SW_SPDT
SW1, SW2, SW3, SW5, SW6
1
~
TB6600FG1
6
LED
CTS1, EN1, IO4, IO5, RST1, RTS1
2
Conn_01x02_Pin
LED4, LED5
1
LED
D1
1
FerriteBead
FB1
1
L
L1
1
0.47uF
C1
2
10uF
C2, C15
5
22uF
C3, C4, C20, C21, C29
2
1uF
C5, C6
8
100nF
C7, C8, C9, C10, C11, C12, C18, C19
2
4.7uF
C13, C14
1
2.2uF
C16
2
0.1uF
C17, C27
3
1UF
C22, C24, C28
3
100nF
C23, C25, C26
3
10K
R1, R11, R12
8
1K5
R2, R3, R16, R17, R18, R20, R30, R31
7
1.5k
R4, R26, R27, R28, R29, R35, R37
4
0.2 Ohm
R5, R6, R7, R8
1
51K
R9
2
30K
R10, R13
1
4.7K
R15

StartTech Valve design files

The KiCad project lives in the Lucasmnascimento94/Smart-Shower repository on GitHub; these links point at the commit this page was built from.

StartTech Valve: common questions

What microcontroller does the StartTech Valve use?

The StartTech Valve is built around the ESP-12E, from the ESP8266 family.

How big is the StartTech Valve PCB?

The StartTech Valve measures 155.4 × 116.3 mm, has 4 copper layers and is 1.665 mm thick.

How many components are on the StartTech Valve?

101 components, from 45 distinct parts. The full bill of materials is listed on this page.

Where can I download the StartTech Valve design files?

From the Lucasmnascimento94/Smart-Shower repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the StartTech Valve design in my own project?

The repository has no license, so all rights stay with Lucasmnascimento94. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the StartTech Valve 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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