Description
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Characteristics
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Description
Summary
HT-CT62 is a LoRa/LoRaWAN node module with a long communication range, low power consumption, high sensitivity, and low cost. The module is composed of ESP32-C3FN4 (32-bit microprocessor based on RISC-V architecture) and Semtech LoRa Transceivers (SX1262). The module integrates 2.4 GHz Wi-Fi and LoRa two-mode wireless communication. HT-CT62 is a small volume, stamp hole package module, it’s the best choice for smart cities, smart farms, smart homes, and IoT makers.
Main Features
- Microprocessor: ESP32-C3FN4 (RISC-V architecture 32-bit, main frequency up to 160 MHz)
- Integrated WiFi network connection, onboard Wi-Fi, IPEX socket.
- Support the Arduino development environment;
- LoRaWAN 1.0.2support;
- Ultra low power design, 10uA in deep sleep;
- 1.27 stamp edge design for SMT;
- Good impendence matching and long communication
Specifications
Parameters | Description |
---|---|
Master Chip | ESP32-C3FN4(32-bit@RISC-V architecture) |
WiFi | 802.11 b/g/n, up to 150Mbps |
LoRa Chipset | Chipset SX1262 |
Frequency | 470~510MHz, 863~928MHz |
Max. TX Power | 21±1dBm |
Max. Receiving Sensitivity | -134dBm |
Hardware Resource | 5*ADC1+1*ADC2; 2*UART; 1*I2C; 3*SPI; 15*GPIO; etc. |
Memory | 384KB ROM; 400KB SRAM; 8KB RTC SRAM; 4MB SiP Flash |
Interface | 2.4G ANT (IPEX1.0); LoRa ANT(IPEX1.0); 2*11*1.27 spacing Stamp hol |
Power Consumption | Deep Sleep 10uA |
Operating Temperature | -40~85 ℃ |
Dimensions | 17.78 * 17.78* 2.8mm |
Description
Pin Map
FAQ
If you want to use the new ESP32-S3 processor and the SX1262 LoRa chip, you may need to use new libraries that support them. You should check that the libraries you are using are compatible with these new components.
As far as my experience with the Wireless Stick Lite is concerned, the only library I had to change when switching from V1 to V3 was the LoRa library. The Sandeep Mistry LoRa library that I used earlier doesn’t work with the new SX1262 LoRa chip. To make my code work with the V3, I had to migrate to the Heltec LoRaWan_APP library. This was a true migration because the two libraries don’t use identical calls.
First up, you need to have installed the latest Heltec support software (refer to this post), then you need to select the board identified as:
WiFi LoRa 32(V3) / Wireless shell(V3) / Wireless stick lite (V3)
If you can’t see this board anywhere in the board list, you probably don’t have the correct support software installed. Previous ESP32 code (whether it’s from Heltec or anyone else, I believe) will not run on the new ESP32-S3 processor.
There are now several recent posts discussing issues with getting connected to the new V3 boards, so check them out and see how you go following the recommendations provided therein.
If you’re still having trouble, include a description of your development environment (Arduino IDE or whatever, and on what OS platform) in your next post.
And if you succeed, it would be helpful if you could post a reply letting everyone know what your problem ultimately was and how you corrected it.
Imagine that you want to measure the moisture in your field. Although, it is not far from your house, it probably doesn’t have Wi-Fi coverage. So, you can build a sensor node with an ESP32 and a moisture sensor, that sends the moisture readings once or twice a day to another ESP32 using LoRa.The later ESP32 has access to Wi-Fi, and it can run a web server that displays the moisture readings.This is just an example that illustrates how you can use the LoRa technology in your ESP32 projects.
Docs & Resource
- [Resource] — Recommend hardware design
- [Attachment] — Pin map
- [Attachment] — Footprint
- [Resource] — Downloadable Resources
Packing list
The default packing list without selecting any accessories is as follows:
Item | Quantity |
---|---|
HT-CT62 | x1 |
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Wireless Stick(V3) $17.90
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RS485 Wireless Converter $17.90 – $27.90
Characteristics
Weight | 2 g |
---|---|
Dimensions | 2.2 × 2.2 × 0.4 cm |
LoRa Band | 433MHz, 470~510MHz, 863~870MHz, 902~928MHz |
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