Terraesp
About the Terraesp PCB
Terraesp is an open source ESP32 PCB design by fehlfarbe, published on GitHub under the MIT license. It is a board measuring 127 × 54.3 mm, with 82 components from 27 distinct parts.
Its main chip is the ESP32-WROOM-32(8MB), from the ESP32 family. Other key parts include the AMS1117, TSR1-2450, DMG4800LSD and 22-23-2041. By type, the board carries 27 resistors, 6 crystals, 5 ICs, 4 fuses, 4 relays and 4 transformers.
It belongs with the sensors and iot & wireless designs in this gallery.
From the project
ESP32 terrarium controller
With this project you can control your terrarium's temperature, light, sprinkler and so on via webinterface.
Reads different Sensors for temperature and humidity (DHT22, SHT3x, DS1820, ...) and analog sensors to measure soil moisture etc. Timers for day/night light switch Actions if threshold for a sensor is reached e.g. to start sprinkler for 10s if humidity is under threshold Webinterface: 24h log of temperature and humidity, actions etc. control for buttons/actors and sliders for PWM pins change config OTA update via WiFi
Main components on the Terraesp
Terraesp bill of materials (BOM)
82 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32(8MB) | MODULE_ESP32-WROOM-32(8MB) | U1 |
| 1 | AMS1117 | SOT229P700X180-4N | U2 |
| 1 | TSR1-2450 | TSR1-2450 | U$1 |
| 2 | DMG4800LSD | SOIC127P600X144-8 | U$2, U$3 |
| 2 | 22-23-2041 | 22-23-2041 | A0, A1 |
| 3 | 22-23-2021 | 22-23-2021 | X1, X2, X3 |
| 3 | 22-23-2041 | 22-23-2041 | X6, X7, X8 |
| 1 | PINHD-1X2 | 1X02 | CON0_5V1 |
| 5 | 22-23-2021 | 22-23-2021 | +12V-1, PWM0, PWM1, PWM2, PWM3 |
| 4 | PINHD-1X2 | 1X02 | -5V+1, BOOT1, EN1, OTA1 |
| 4 | — | @HOLE0, @HOLE1, @HOLE2, @HOLE3 | |
| 4 | 2A | 0207_10 | F1, F2, F3, F4 |
| 1 | 22-23-2041 | 22-23-2041 | I2C1 |
| 4 | G3MB202PDC12 | RELAY_G3MB202PDC12 | K1, K2, K3, K4 |
| 5 | 691212710002 | 691212710002 | SSR_0, SSR_1, SSR_2, SSR_3, SSR_IN1 |
| 4 | BC850 | SOT23 | T1, T2, T3, T4 |
| 1 | PINHD-1X4 | 1X04 | UART0 |
| 4 | LEDCHIPLED_1206 | CHIPLED_1206 | LED1, LED2, LED3, LED4 |
| 1 | COM-11821 | LED_COM-11821 | D1 |
| 1 | 1N4004 | DO41-10 | D2 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CPOL-EUE5-10.5 | E5-10,5 | C1 |
| 1 | TAJA226M010R | CAPCP3216X180N | C2 |
| 1 | C-EUC1206 | C1206 | C3 |
| 4 | 10k | R1206 | R1, R4, R9, R12 |
| 8 | 1k | R1206 | R2, R7, R10, R13, R20, R22, R24, R26 |
| 4 | 220 | R1206 | R3, R8, R11, R14 |
| 11 | 10k | M1206 | R5, R6, R15, R16, R17, R18, R19, R21 +3 |
Terraesp design files
The KiCad project lives in the fehlfarbe/terraesp repository on GitHub; these links point at the commit this page was built from.
Terraesp: common questions
What microcontroller does the Terraesp use?
The Terraesp is built around the ESP32-WROOM-32(8MB), from the ESP32 family.
How big is the Terraesp PCB?
The Terraesp measures 127 × 54.3 mm and is 1.6 mm thick.
How many components are on the Terraesp?
82 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Terraesp design files?
From the fehlfarbe/terraesp repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Terraesp design in my own project?
Yes, under the terms of its MIT license, which fehlfarbe chose for the repository.
Can I test firmware for the Terraesp 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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