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PowerMonitorMK3

MAWoodMain·PowerMonitorMK3·PCB/Power Monitor MK3.kicad_pcb

PowerMonitorMK3 PCB layout, top view — open source ESP32 board by MAWoodMain
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About the PowerMonitorMK3 PCB

PowerMonitorMK3 is an open source ESP32 PCB design by MAWoodMain, published on GitHub. It is a 2-layer board measuring 125 × 41 mm, with 86 components from 42 distinct parts.

Its main chip is the ESP32-WROVER, from the ESP32 family. Other key parts include the AZ1117-3.3, ADUM6000, ADUM4152BRIZ and ADE9153A. By type, the board carries 40 capacitors, 15 resistors, 10 test points, 8 connectors, 6 ICs and 4 diodes.

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

From the project

Third version high resolution high speed AC power monitor

- [ ] #1 Copper pour sticks out of board edge - [ ] #2 U2's Pin 5 shorted to GND should be NC - [ ] #3 Reserved pins being used on JP5, JP6 & JP7 - [ ] Silkscreen is uninformative - [ ] Power LEDs on all rails is annoying and not very useful after the initial power on test - [ ] No LED to blink from the ESP? - [ ] No test points on the mains side (was intentional because GND is 240Vac over there :grimacing:) - [ ] Add CH340G or equivilent USB to UART with auto GPIO0 & RST for toolless development

Main components on the PowerMonitorMK3

AZ1117-3.3ADUM6000ADUM4152BRIZESP32-WROVERADE9153A

PowerMonitorMK3 bill of materials (BOM)

86 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
AZ1117-3.3
U1, U4
1
ADUM6000
ADuM6000
U2
1
ADUM4152BRIZ
ADuM4152BRIZ
U3
1
ESP32-WROVER
U5
1
ADE9153A
U6
1
12.288MHz 18pF
Y1
1
MAINS_OUT
J1
1
MAINS_IN
J2
1
ESP32_BOOT
J3
2
ESP_JTAG
J4, J5
1
Micro_SD_Card
J6
1
ESP_EINK
J7
1
USB_B_Micro
J8
1
BOOT_SW
SW1
1
RST_SW
SW2
1
hSS
TP1
1
hSCLK
TP2
1
hMOSI
TP3
1
hMISO
TP4
1
3V3
TP5
Show 22 more
QtyPartRefs
1
GND
TP6
1
vSS
TP7
1
vSCLK
TP8
1
vMOSI
TP9
1
vMISO
TP10
4
LED
D1, D2, D3, D4
6
10UF
10uF
C1, C3, C4, C11, C12, C13
3
22UF
22uF
C2, C14, C17
19
100NF
100nF
C5, C6, C7, C8, C9, C10, C15, C16 +11
1
15NF
15nF
C22
7
4.7UF
4.7uF
C23, C25, C26, C27, C34, C35, C36
1
470NF
470nF
C37
2
30PF
30pF
C38, C39
1
1UF
1uF
C40
1
100K
R1
1
300U
300u
R2
3
330K
R3, R5, R8
1
0
R4
2
150K
R6, R7
3
1K
R9, R10, R14
2
10K
R11, R12
2
220
R13, R15

PowerMonitorMK3 design files

The KiCad project lives in the MAWoodMain/PowerMonitorMK3 repository on GitHub; these links point at the commit this page was built from.

PowerMonitorMK3: common questions

What microcontroller does the PowerMonitorMK3 use?

The PowerMonitorMK3 is built around the ESP32-WROVER, from the ESP32 family.

How big is the PowerMonitorMK3 PCB?

The PowerMonitorMK3 measures 125 × 41 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PowerMonitorMK3?

86 components, from 42 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 PowerMonitorMK3 design files?

From the MAWoodMain/PowerMonitorMK3 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the PowerMonitorMK3 design in my own project?

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

Can I test firmware for the PowerMonitorMK3 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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