---
title: "ESP32 ETHERNET & WIFI & BLUETOOTH PLC 21 I/Os Analog/Digital PLUS"
url: "https://maker.wiznet.io/WIZnet/resellers/esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus/"
markdown_url: "https://maker.wiznet.io/WIZnet/resellers/esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus/md"
type: "VAR: Value-Added Reseller Products"
author: "industrialshields"
author_url: "https://www.industrialshields.com/shop/product/034001000200-esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus-2801#attr=165,491,2238,2304,2305"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "industrialshields"
original_url: "https://www.industrialshields.com/shop/product/034001000200-esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus-2801#attr=165,491,2238,2304,2305"
published: "2023-03-14"
language: "en"
likes: 3
views: 185
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# ESP32 ETHERNET & WIFI & BLUETOOTH PLC 21 I/Os Analog/Digital PLUS

> ESP32 ETHERNET & WIFI & BLUETOOTH PLC 21 I/Os Analog/Digital PLUS

Original author: industrialshields (source: https://www.industrialshields.com/shop/product/034001000200-esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus-2801#attr=165,491,2238,2304,2305)

## Article

introduction

SP32 ETHERNET & WIFI & BLUETOOTH PLC 21 I/Os Analog/Digital PLUS 13 Inputs 8 Outputs Communications: RTC, µSD, Ethernet, USB, Full/Half Duplex RS485, RS232, I2C & SPI, Modbus, WiFI & Bluetooth LE

## ESP32 PLC based details

### Industrial Automation

**Modular PLC **This is the first equipment based on the ESP32 technology designed for a professional use. This PLC has 21I/Os. It also contains several communication ports which provide more flexibility and control. The ESP32 family offers the possibility to expand up to 127 modules through I2C, which means that you can have until 7100 Inputs / Outputs in Master-Slave connections, additionally to sensors, etc… **Programming Software **This PLC can be programmed using the Arduino IDE platform. See the Documentation menu below to download the software for free. **Instantaneous connection and coding **The ESP32 PLC is programmed through the USB ports. This PLC can also be programed through Ethernet port remotely. This offers and immediate access to program, mantain and control. Also you can continuously monitor the status for all the variables, inputs, outputs, etc. It is compatible with the Ardbox and the Touchberry Pi with instantaneous connection.

technical details

Inputs ▼

| **Total Inputs** | 13 |
| --- | --- |
| Total **Digital Optoisolated **Inputs (5-24Vdc) | 7 |
| **Digital Optoisolated** Inputs (5-24Vdc) | 5 |
| **Digital Optoisolated **Inputs (5-24Vdc) \| **can work like interrupt **Inputs INT (5-24Vdc) | 2 |
| **10 bit Analog Inputs** (0-10V) \| **Digital (5-24Vdc)** Inputs configurable by software | 6 |

Inputs notes - * From the (Xx) Digital, (Yx) can be configured as Analog (Xx = Total Digital In, Yx = Number of Analog In) * From the (Xx) Digital, (Zx) can be configured as Interrupt (Xx = Total Digital In, Zx = Number of Interrupt pins)

#### Outputs ▼

| **Total Outputs** | 8 |
| --- | --- |
| **Digital Optoisolated** Outputs (5-24Vdc) | 5 |
| **Digital Optoisolated and PWM** (5-24Vdc)** \| 10 bit Analog (0-10V)** Outputs configurable by switch | 3 |
| **Relay Outputs** (220Vac - 5A) | 0 |
| Output notes |  |

#### Communications ▼

| **Ethernet** communication - 1 |
| --- |
| **Wi-Fi & BLE** (Bluetooth Low Energy) - YES |
| **GPRS/GSM **- NO |
| **USB** port (type B) communication (for uploading or debugging only) - 1 |
| **Micro USB **port (type B) communication (for uploading or debugging only) - 0 |
| **I2C (3.3Vdc)** communication (interface with other Industrial Shields, sensors, I/Os modules) - 1 |
| **Serial TTL** (UART) communication - NO |
| **RS-232** communication - 1 |
| Half/Full Duplex **RS-485** communication - 1 |
| **SPI (3.3Vdc) **external port communication (using MOSI, MISO, SS pins of Arduino) - 1 |
| **RTC** (Real Time Clock. NOTE: I2C port used. See pinout modification) - YES |
| **µSD Socket** (using SPI port, chip select D53 pin) - YES |

Communications notes - * When using I2C, 2 inputs are lost

#### The Open Source Board CPU ▼

| Single Board Computer (SBC) Microcontroller | **ESP32** |
| --- | --- |
| **Flash Memory (MB)** | 4 |
| **SRAM in RTC (KB)** | 16 |
| **SRAM (KB)** | 520 |
| **Clock Speed (MHz) ** | 40 |

#### Certification & Safety ▼

| **Conformity with Health, Safety, and Environmental Protection (CE)** EN61010-1 \| EN61010-2-201 \| EN61131-2:2007(Clause 8: Zone A/B EMC and clause 11:LVD) \| EN61000-6-4:2007 + A1 2011 (Emissions) \| EN 61000-6-2:2005 (Immunity) |
| --- |
| **FCC Federal Code of Regulation (CFR) for Electronic Equipment:** EMC: FCC Part 15 |
| **RoHS:** Directive 2002/95/EC \| Restriction of Hazardous Substances (EEE) |
| **UL: **STD 61010-2-201 and UL STD 61010-1 \| Certified to CSA Std. C22.2 No. 61010-1 \| Certified to CSA Std. C22.2 No.61010-2-201 \| **5016476** |
| **NCAGE (Commercial and Government Entity Code - Department of Defense):** NCAGE 99SGB \|Commercial and Government Entity Code \| Boot&Work Corp SL Industrial Shields |

#### Other information ▼

| **PLC measures:** 101x119.5x119.3 |
| --- |
| DIN Rail mounting |
| **Max. consum.:** 1.2A |
| **Power Supply Voltage (Vdc) Range:** 12-24 |
| **Power Consumption (VAC max.):** 30 |
| **Operating Temperture C: **0C-60C |
| **Operating Temperature F:** 32F-140F |
| **Operating Relative Humidity % (no condensation):** 10%-90% |
| **Package Size**: 13cm x 14cm x 8cm |
| **Packaging: **Box |
| **ECCN Number: **EAR99H |
| **HTS Code: **8537.10.10.90 |
| 740.17 Language - 740.17 (b)(1) for self-classification or (b)(3) CCATS issued: §740.17 (b)(1) |
| **Country of Origin:** Spain |
| **STATIC Sensitive: **NO |
| **Moisture Sensitivity Level (MSL):** MSL 1 - Unlimited |
| Lead Free |
| RoHS Compliant by Exemption? NO |
| Does Part Contain Lithium? YES |
| **Product Weight:** 434 gram |

**Other Technical Specifications:** *Rx,Tx pins are not available using RS485. For SPI you need to choose another pin for Select Function (You can choose, SDA, SCL, Rx, Tx, Pins of Arduino)

how to use

### **Related Documents:**

#### [CE -ESP32 Family PLC .pdf](https://www.industrialshields.com/attachment/download?attachment_id=243556)

#### [202102-ESP32-ENG-LR.pdf](https://www.industrialshields.com/attachment/download?attachment_id=243558)

#### [202102-ESP32-ESP-LR.pdf](https://www.industrialshields.com/attachment/download?attachment_id=243559)

#### [20220126_ESP32 ETHERNET&WIFI&BLUETOOTH PLC Family UserGuide.pdf](https://www.industrialshields.com/attachment/download?attachment_id=396618)

#### [202201_ESP32_Family_PLC_Datasheet.pdf](https://www.industrialshields.com/attachment/download?attachment_id=396620)

---

Source: https://maker.wiznet.io/WIZnet/resellers/esp32-ethernet-wifi-bluetooth-plc-21-i-os-analog-digital-plus/