TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module
TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module
TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module
Combine the power of the ESP32 dual-core processor with cellular GSM/GPRS connectivity in one compact board. The TTGO T-Call V1.4 integrates the SIM800L module, enabling your IoT projects to send SMS, make voice calls, and transmit data over 2G networks - no Wi-Fi required. Available now from The Tech Depot, Bengaluru, with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Main Processor | ESP32 Dual-Core 240 MHz (Xtensa LX6) |
| Cellular Module | SIM800L Quad-Band GSM/GPRS (850/900/1800/1900 MHz) |
| Wi-Fi | 802.11 b/g/n (2.4 GHz) |
| Bluetooth | Bluetooth 4.2 BLE + Classic |
| Flash Memory | 4 MB |
| PSRAM | 4 MB (HIMEM) |
| SIM Card Slot | Nano-SIM (push-in type) |
| Antenna | Onboard IPEX connector for external GSM antenna (antenna included) |
| USB Interface | Micro-USB (CP2104 USB-to-Serial) |
| Operating Voltage | 3.3 V logic / 5 V USB input |
| Battery Support | JST 1.25 mm connector for 3.7 V LiPo with onboard charging (IP5306 PMIC) |
| GPIO Pins | Multiple GPIOs broken out (I2C, SPI, UART, ADC, DAC) |
| Board Version | V1.4 (improved power management over V1.3) |
| Board Dimensions | Approx. 68 x 25 x 10 mm |
| Programming | Arduino IDE, PlatformIO, ESP-IDF |
| Origin | Original LILYGO / TTGO Authentic Module |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 Technical Support |
Key Features
- Dual Connectivity: ESP32 provides Wi-Fi and Bluetooth while the SIM800L adds cellular GSM/GPRS, giving your project multiple communication pathways for maximum reliability.
- SMS, Voice & Data: Send and receive SMS messages, initiate or answer voice calls, and perform HTTP/MQTT data transfers over the 2G cellular network using AT commands.
- Improved V1.4 Power Design: Features the IP5306 power management IC with a JST battery connector, enabling stable operation on a single 3.7 V LiPo cell with built-in USB charging.
- Nano-SIM Slot: Accepts standard nano-SIM cards from any GSM carrier - simply insert a prepaid or postpaid SIM and start communicating.
- External GSM Antenna: IPEX antenna connector with included external antenna ensures strong cellular signal reception even in enclosures or remote deployments.
- Full ESP32 Capabilities: Dual-core 240 MHz processor, 4 MB flash, 4 MB PSRAM, and rich peripheral support (I2C, SPI, UART, ADC, DAC, PWM) for complex applications.
- Arduino & PlatformIO Compatible: Extensive library support including TinyGSM, making it easy to get started with cellular IoT in minutes.
- Compact Form Factor: Small enough to embed in portable devices, wearables, or field-deployed sensor nodes.
Why Choose the TTGO T-Call V1.4?
- 100% Authentic LILYGO Product: Sourced directly from authorized distributors - no clones or counterfeits.
- All-in-One Solution: No need to wire a separate SIM800L breakout to an ESP32 - everything is integrated, tested, and ready to program.
- Remote IoT Without Wi-Fi: Deploy sensors, trackers, and alert systems in locations where Wi-Fi is unavailable - farms, vehicles, remote infrastructure.
- 1-5 days shipping: Ships from our Bengaluru warehouse to most locations across India. Same-day delivery available within Bengaluru.
- Expert Technical Support: Our engineering team helps you with wiring, code, library setup, and troubleshooting - included free with every purchase.
Project Ideas
- GPS Vehicle Tracker: Pair with a GPS module (NEO-6M) to build a real-time vehicle tracking system that sends location coordinates via SMS or GPRS to a cloud dashboard.
- Remote Weather Station: Deploy temperature, humidity, and rain sensors in agricultural fields and transmit readings
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module Online in India
Purchase the TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy TTGO T-Call V1.4 ESP32 SIM800L Wireless Communication Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.