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Data manager

LibreSolar·data-manager·kicad/data-manager.kicad_pcb

Data manager PCB layout, top view — open source ESP32 board by LibreSolar

About the Data manager PCB

Data manager is an open source ESP32 PCB design by LibreSolar, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 74 × 38 mm, with 32 components from 19 distinct parts.

Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the SI8621AB-B-ISR, AP2210-3.3, FT231XS and TCAN334. By type, the board carries 11 capacitors, 8 resistors, 5 ICs, 5 connectors, 2 transistors and 1 LED.

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

From the project

CAN/UART to WiFi gateway and SD card data logger based on ESP32

Firmware repository: LibreSolar/data-manager-firmware

- ESP32 WROOM board for WiFi and Bluetooth connection - USB Micro-B power supply and debug serial - microSD card slot - LS.one interface (UART serial) - LS.bus interface (CAN) - Suitable housing: Hammond Mfg. 1591XXAFLBK

Data manager, from the project README
From the project README

Main components on the Data manager

ESP32-WROOM-32DSI8621AB-B-ISRAP2210-3.3FT231XSTCAN334

Data manager bill of materials (BOM)

32 components, 19 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32D
U1
1
SI8621AB-B-ISR
U2
1
AP2210-3.3
U3
1
FT231XS
U4
1
TCAN334
U5
2
MMBT3904
Q1, Q2
1
Micro_SD_Card
J1
1
6P6C
J2
1
USB_B_Micro
J3
2
8P8C
J4, J5
1
LED
LED1
2
10uF
C1, C10
3
2.2u
C2, C3, C11
2
47p
C4, C5
4
100n
C6, C7, C8, C9
4
10k
R1, R2, R7, R8
1
1k
R3
2
27
R4, R5
1
120R
R6

Data manager design files

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

Data manager: common questions

What microcontroller does the Data manager use?

The Data manager is built around the ESP32-WROOM-32D, from the ESP32 family.

How big is the Data manager PCB?

The Data manager measures 74 × 38 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Data manager?

32 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Data manager design files?

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

Can I use the Data manager design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which LibreSolar chose for the repository.

Can I test firmware for the Data manager 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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