Active Components

Elecrow Leonardo GPRS GSM IOT Board with SIM800C Relay Switches Wireless Projects DIY Kit Integrated Board Micro SIM Card

$28.54 $23.97

Elecrow Leonardo GPRS GSM IOT Board with SIM800C Relay Switches Wireless Projects DIY Kit Integrated Board Micro SIM Card


The Leonard GPRS/GSM is an integrated board which based on the Leonardo. It composed of SIM800C, Leonardo, relay switches and so on. The SIM800C receives phone message by GSM phone network. What’s more, the system provides four switches interfaces so that you can compatible with your design easily, and it also can connect USB power with a single charger. The Leonardo GPRS/GSM IOT can receive message to control and operate relay switches by GSM phone network anytime and anywhere, and it can receive information with any phone card.

The Leonardo GPRS/GSM IOT Board can be applied to remote control industrial motor, smart home and remote control locks.


Quad-Band 850/ 900/ 1800/ 1900 MHz

GPRS multi-slot class 10/12

Micro SIM card

8-bit AVR MCU

GPRS/GSM function

Power Interface:USB,DC


Working temperature: -30°C to +85 °C

Size: 9.5cm x 6.5cm

Input voltage: 5v-12v (DC)

The output point for the load: 2A (under 25 degrees)

Package list

The Leonardo GPRS/GSM IOT Board x 1 Manual and techsupport:

About Us

Elecrow is an open hardware facilitation company based in Shenzhen, China. Benefiting from the largest electronic market, local manufacture power and convenient global logistic system, a vast number of funny and exciting products are created every day. We integrate resources to serve new era of innovation.

To make your making and innovation easier, we offer various development platform, modules, tools, electronics components,and other open source hardware.we also provide many kinds of service ,include Fusion PCB service, Component Sourcing service and PCB Assembly service etc.

No matter whether you\'re a curious student, a qualified engineer, or a hobbyist who loves to create, there will always be something here to meet your needs - and if there isn\'t ,we\'d love to know. please Feel free to contact with us.

Customer Satisfaction

Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback and 5 stars for us if you are satisfied with our product and service.

For any reasons, you are not satisfied with the items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve the problems and provide you with the best customer servcies. Warranty & Return

We do our best to serve our each customer the best that we can do.

We will refund you for items returned within 7 days of you receiving them, for any reason. A full refund will be given if items are returned in their original condition.

We provide 1 month replacement and 12 months maintenance warranties. Items be replaced during the first month or maintained for the first year.

Before returning items, please contact with us and make sure you get our (the seller’s) return address


We accept payment through Credit Card, paypal or anyway that supports.

Shipping 1. We support world wide shipping with tracking number(Registered airmail) and express(DHL/FEDEX/UPS/EMS).

2. Shipping cost: Click "Shipping and payment" tab on the product detail page, and you will see the delivery details. You can calculate shipping cost by inputting the required information.

3. Time in transit: Transit time varies with different shipping methods.

Carrier Name Estimated Time in Transit from China to Destination Tracking Service 3-5 business days 3-5 business days 3-5 business days 5-10 days 7-25 days

4. Order Processing Time: Orders will be processed within 1-2 business days after payment is cleared.

Tech support Technical support is to help suggest products to purchase and ensure that those products are working as expected.

  • Wireless IOT Projects: DIY Kit
  • item weight: 75g
  • Condition: New
  • Brand Name: ELECROW
  • Model Number: WCW07517B
  • Type: Voltage Regulator
  • Supply Voltage: 3.3V-4.2V
  • Operating Temperature: Standard
  • GPRS/GSM IOT Board: Leonardo
  • Application: Computer
  • Sizes : 9.5cm x 6.5cm
  • Rohs complaint:
  • Package: SMD
  • Dissipation Power: -30 Degrees Celsius to + 80 Degrees Celsius

  • Unit Type: piece
  • Package Size: 13cm x 8cm x 5cm (5.12in x 3.15in x 1.97in)
  • Package Weight: 0.08kg (0.18lb.)

  • Author: Alan Potro04
  • Date: 2018-01-11
  • module working! normal soldering.
  • 5/5

  • Author: Gian Elunico U
  • Date: 2018-04-11
  • all sim and inserted. thank you (standard packaging)
  • 5/5

  • Author: Marko Zelenovic
  • Date: 2018-01-22
  • cool fee, will сигналку gsm
  • 5/5