Project5-ESP32-WROOM-PZEM
HowardsPlayPen·Project5-ESP32-WROOM-PZEM·Hardware/ESP32-WROOM-generic.kicad_pcb
About the Project5-ESP32-WROOM-PZEM PCB
Project5-ESP32-WROOM-PZEM is an open source ESP32 PCB design by HowardsPlayPen, published on GitHub. It is a 2-layer board measuring 95 × 70 mm, with 45 components from 31 distinct parts.
Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the AMS1117-3.3, FT232RL, RFM69HW, TFT-LED_1_69_240x280 and FPC_TFT_LED_1_69_240x280. By type, the board carries 13 connectors, 9 capacitors, 8 resistors, 7 ICs, 4 diodes and 2 jumpers.
It belongs with the iot & wireless designs in this gallery.
From the project
ESP32 Wroom based board for connecting to PZEM board to monitor 240V
Using an ESP32-WROOM + RFM69HW + PZEM + pinouts for a few different LED screens.
Test out various different circuits - including touch buttons connected to ESP32 pins (I read that they could work as capacitative buttons)
It includes a connector for PZEM - i.e. ability to monitor 240V power use.

Main components on the Project5-ESP32-WROOM-PZEM
Project5-ESP32-WROOM-PZEM bill of materials (BOM)
45 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32D | MODULE_ESP32-WROOM-32D | U1 |
| 2 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2, U9 |
| 1 | FT232RL | SSOP-28_5.3x10.2mm_P0.65mm | U5 |
| 1 | RFM69HW | HOPERF_RFM69HW | U6 |
| 1 | TFT-LED_1_69_240x280 | TFT-LED_1_69_240x280 | U7 |
| 1 | FPC_TFT_LED_1_69_240x280 | FPC_TFT_1_69_240x280 | U8 |
| 1 | FTDI | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J1 |
| 1 | SPI VSPI | JST_EH_B9B-EH-A_1x09_P2.50mm_Vertical | J2 |
| 1 | SPI HSPI | JST_EH_B9B-EH-A_1x09_P2.50mm_Vertical | J3 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J4 |
| 1 | ANT | Pin_D1.0mm_L10.0mm | J5 |
| 1 | VCC PWR | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J6 |
| 1 | BLK | TestPoint_Plated_Hole_D2.0mm | J7 |
| 1 | PWR_OUT | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J8 |
| 1 | GND_OUT | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J9 |
| 2 | 3V3_OUT | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J10, J11 |
| 2 | GPIO | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J12, J13 |
| 1 | RESET | SW_DIP_SPSTx01_Slide_6.7x4.1mm_W8.61mm_P2.54mm_LowProfile | B1 |
| 2 | SolderJumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1, JP2 |
| 1 | BOOT | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | SW2 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LED | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2 |
| 2 | D_Schottky | D_MELF | D3, D4 |
| 1 | 1uF | C_0504_1310Metric_Pad0.83x1.28mm_HandSolder | C1 |
| 2 | 0.1uF | C_0504_1310Metric_Pad0.83x1.28mm_HandSolder | C2, C6 |
| 2 | 10uF | C_0504_1310Metric_Pad0.83x1.28mm_HandSolder | C3, C7 |
| 4 | 22uF | C_0504_1310Metric_Pad0.83x1.28mm_HandSolder | C4, C5, C9, C10 |
| 1 | 10K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 2 | 5K1 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R4 |
| 2 | 270R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R6 |
| 2 | 47k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R7, R8 |
| 1 | ? | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R9 |
Project5-ESP32-WROOM-PZEM design files
The KiCad project lives in the HowardsPlayPen/Project5-ESP32-WROOM-PZEM repository on GitHub; these links point at the commit this page was built from.
Project5-ESP32-WROOM-PZEM: common questions
What microcontroller does the Project5-ESP32-WROOM-PZEM use?
The Project5-ESP32-WROOM-PZEM is built around the ESP32-WROOM-32D, from the ESP32 family.
How big is the Project5-ESP32-WROOM-PZEM PCB?
The Project5-ESP32-WROOM-PZEM measures 95 × 70 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Project5-ESP32-WROOM-PZEM?
45 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the Project5-ESP32-WROOM-PZEM design files?
From the HowardsPlayPen/Project5-ESP32-WROOM-PZEM repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Project5-ESP32-WROOM-PZEM design in my own project?
The repository has no license, so all rights stay with HowardsPlayPen. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Project5-ESP32-WROOM-PZEM 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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