๐Ÿ“ Design๏ƒ

Electronic schematics๏ƒ

_images/Schematic_1.png _images/Schematic_2.png

Download PDF

PCB๏ƒ

3D printable enclosure๏ƒ

FDM version๏ƒ

This 3D model is intended to be printed on FDM printers. Check your printing configuration for obtaining the best results on ~2mm thick walls.

_images/Render.png _images/Render_1.png

Printable STL files:

Editable STEP files:

SLA version๏ƒ

This 3D model is intended to be printed on SLA printers. If you want to use transparent resins, you can download the Top transparent version, without holes for the sensor or the display.

_images/Render1.png _images/Render_11.png

Printable STL files:

Editable STEP files:

Communityโ€™s versions๏ƒ

  • @Paulomart created a more streamlined button operation version for the bottom part. Check it out on Printables.

https://media.printables.com/media/prints/745390/images/5824027_fd714d4d-da38-4658-af41-c73c53df3433_d8d7018c-166e-40a0-8fd8-d4adc773e110/thumbs/inside/1920x1440/jpeg/img_7507.webp

Technical Specifications๏ƒ

Microcontroller๏ƒ

Module

ESP32-S2-MINI-1

SoC

Xtensaยฎ singlecore 32-bit LX7 up to 240MHz

Flash

4MB

PSRAM

2MB

Power๏ƒ

Battery

LiPo 3.7 V 1000 mAh

Input (USB/Solar panel)

5V @ 500mA

Features๏ƒ

Interface

USB Type C

2.4GHz WiFi

UART

Display

2.9โ€ e-paper

Sensors

Capacitive soil moisture probe (analog)

VEML7700-TR illuminance sensor (digital \(I^2C\))

AHT20 air temperature & relative humidity sensor (digital \(I^2C\))

MAX17048 battery voltage level sensor (digital \(I^2C\))

Dimensions๏ƒ

Size

130x80x7mm

132x84x15mm with enclosure

Weight

20g

45g with battery

Environment๏ƒ

Caution

If the Smart Plant is placed on the soil close to the plant, be careful at the moment of wattering your plant: avoid splashes or flooding the pot.

Parameter

Symbol

Min.

Typ.

Max.

Unit

Working temperature 1

\(T_{amb}\)

0

25

60

ยฐC

Storage temperature 1

\(T_{amb}\)

0

25

60

ยฐC

1(1,2)

Based on components datasheets.