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T-Call
T-Call
ESP32 Wireless Module SIM Antenna Development Board
3.57 / 5.0
(7) 7 total reviews
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About Shipping
About Shipping
Methods & Delivery Time
- Standard Express: 25-30 Days
- YunTu Express : 10-20 Days
(Company name can't be used consignee) - DHL: 10-17 Days
- FedEx: 10-17 Days
Please note that all delivery times are estimated for reference only.
Check More Info: Shipping Policy
About Tax
About Tax
We only charge the product cost and shipping cost.
1. For Standard Express Order: You may not need to deal with customs clearance, just need to pay attention to the track of the parcel, but this is not absolute, if your parcel is inspected by the customs, then you need to assist in dealing with customs clearance.
2. For DHL/ FedEx Order: You need to deal with the relevant customs clearance matters, as well as pay the tariff, the specific amount of tariff please pay attention to the policy of your country.
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The above tariffs are for reference only, please pay attention to your country's tax policy for more detailed instructions, if you need our help or have questions please feel free to contact us.
ESP32 Wireless Module SIM Antenna WiFi Bluetooth Development Expand Board Devkit for Arduino
Specifications For SIM800
MCU |
ESP32 |
GSM/GPRS | SIM800H |
SIM Nano Card Slot | Yes [2G] |
ESP32 | |
Clock Speed | 240Mhz |
Flash | 4MB/8MB |
PSRAM | 8MB |
Wireless Connectivity |
Wi-Fi: 802.11 b/g/n Bluetooth: v4.2 BR/EDR and BLE |
Button | EN |
Charging IC | IP5306 |
Serial Chip | CH9102 |
Peripheral Interfaces | I2C、SPI、UART、SDIO、、I2S、CAN |
Power Supply |
Support USB Type-C / Li-Po Battery Dual Power Supply
[USB can power the battery] |
Others |
Supports pin extension of Mic and Speaker [Ship without mic and speaker by default] |
For T-Call A7670
Notice
Connect the power supply, click to start, after the start, click to reset, and click twice to shut down.
Sample Code For Reference [Github]
If you need technical support please check the below link to find more details.

Pin Diagram



What's In The Box
SIM800H
1 X SIM800H
1 X Power Cable(PH 2pin 2.0mm)
1 X SIM Antenna(~7 cm)
2 X Pin
T-Call A7670
GSM/GPRS Antenna
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Who can use
It's easier to master these development boards with a basic programming knowledge [engineers/ students/ makers, etc..]
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Accelerated processing
International orders please make sure your address is in English
For Hong Kong, Macau and Taiwan orders, please note your personal ID. -
Got a question
Click on the bubble in the bottom right corner where some frequently asked questions are answered, or just drop us a line.
Works exactly like advertised and they made the soldering ready for me without asking money for it with customisation so 5/5. Nothing bad to say and will order more
Excellente service
I received t call v 1.4 but it wasnt working. No lights were flashing. But computer recognised the module. I could upload a programm.but sim800l wasnt working.I contact the aervice but the responses were not as i i expected. I also asked to order a new one with diacount but no answer
Hi Sir,
We have checked our communication records again and our communication stopped on the 11th of July and we have not heard back from you again, please check your inbox again and we will also email you again to help you with your problem.
Would have been nice if there was a disclaimer on the website, but the onus is on me.
All OK !