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Rev1

Hasatio·WaterQualityControl·Rev1/Rev1.kicad_pcb

Rev1 PCB layout, top view — open source ESP32 board by Hasatio
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About the Rev1 PCB

Rev1 is an open source ESP32 PCB design by Hasatio, published on GitHub. It is a 2-layer board measuring 67.3 × 96.9 mm, with 108 components from 43 distinct parts.

Its main chip is the QWIIC_RIGHT_ANGLE, from the ESP32 family. Other key parts include the PCA9685, DRV8870DDA, K7805-2000R3L, TCA9406DC and MCP23008-XSO. By type, the board carries 40 resistors, 22 connectors, 19 capacitors, 17 ICs, 6 jumpers and 3 diodes.

It belongs with the robotics & motion designs in this gallery.

From the project

The circuit taken as an example while designing the board Adafruit PCA9685

The circuit taken as an example while designing the board Adafruit PCA9685

- 1x TCA9406 (Voltage Level Translator) - 2x ADS1115 (Analog to Digital Converter) - 1x MCP23008 (I/O Expander) - 3x DRV8870 (Motor Driver) - 1x K7805-2000R3L or K7805-2000R3 for 5V supply - 2x QWIIC connector

Main components on the Rev1

PCA9685DRV8870DDAK7805-2000R3LTCA9406DCMCP23008-XSOPC817ADS1115IDGS

Rev1 bill of materials (BOM)

108 components, 43 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PCA9685
U1
3
DRV8870DDA
U2, U3, U4
1
K7805-2000R3L
U5
1
TCA9406DC
U6
1
MCP23008-XSO
TCA9534
U7
8
PC817
LTV-817S
U8, U9, U10, U11, U12, U13, U14, U15
2
ADS1115IDGS
U16, U17
1
AOD417
Q1
18
TERMBLOCK_1X2
J1, J4, J5, J6, J7, J8, J9, J10 +10
2
QWIIC_RIGHT_ANGLE
J2, J3
2
Conn_01x05
J11, J14
6
Header 2x3
JP1, JP2, JP12, JP13, JP14, JP15
1
GREEN
D1
1
Z1SMA4740
D2
1
RED
D3
1
10UF
0.1uF
C1
1
1000UF/35V
0.1uF
C2
5
0.1UF
0.1uF
C3, C4, C6, C17, C18
1
10UF/35V
0.1uF
C5
2
0.1UF/35V
0.1uF/35v
C7, C9
Show 23 more
QtyPartRefs
1
0.1UF
0.1uF/35v
C8
1
0.1UF
1000uF/35v
C10
1
0.1UF/35V
10uF/100v
C11
1
10UF
10uF
C12
1
47UF/35V
1000uF/35v
C13
2
47UF/35V
47uF/35v
C14, C15
1
0.1UF
47uF/35v
C16
1
0.1uF
C19
2
10K/603X4
10k/603x4
R1, R2
8
10K
R3, R8, R17, R19, R32, R33, R34, R36
1
1k
R4
3
250M/1W
250m/1w
R5, R6, R7
1
750
10K
R9
1
10K
750R
R10
4
220/603X4
220R/603x4
R11, R12, R13, R14
3
750
750R
R16, R18, R20
4
200
380R
R21, R23, R25, R27
4
100
100R
R22, R24, R26, R28
1
2k2
R29
1
2K
R30
1
100K
100k
R31
3
270R
R35, R37, R38
3
10K
R39, R40, R41

Rev1 design files

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

Rev1: common questions

What microcontroller does the Rev1 use?

The Rev1 is built around the QWIIC_RIGHT_ANGLE, from the ESP32 family.

How big is the Rev1 PCB?

The Rev1 measures 67.3 × 96.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rev1?

108 components, from 43 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Rev1 design files?

From the Hasatio/WaterQualityControl repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Rev1 design in my own project?

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

Can I test firmware for the Rev1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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