Chengdu Ebyte Electronic Technology Ltd (or just Ebyte for short) is a company based in Western China that design and manufacturer low cost wireless modules for LoRa, WiFi, Bluetooth, Zigbee, NB-IoT & GPRS cellular connectivity, many of which appear to be FCC certified.
The list of modules is way too long, so I’ll just have a look at two products from the company: Ebyte E32-915T20D LoRa 915 MHz module and Ebyte ME3612 NB-IoT wireless module.
Ebyte E32-915T20D LoRa 915 MHz module
Specifications:
- Connectivity
- Semtech SX1276
- LoRa 900~931MHz (default: 915 MHz), 32 channels
- Range – up to 3 km with 20 dBm power, 5 dBi antenna
- Data rate – 2.4 kbps (default), configurable to 0.3, 1.2, 2.4, 4.8, 9.6, 19.2 kbps
- Rx Sensitivity – -138dbm at 0.3kbps
- Expansion – 7-pin header 2.54mm pitch with UART, USART host interface
- Power Supply – 2.1 to 5.5V DC
- Power Consumption – Standby: 2.0 uA; Tx: 120 mA at 20dBm; Rx: 14 mA; average: 30 uA
- Dimensions – 36 x 21 mm (excluding SMA connector)
- Weight – 6.7grams (with SMA connector)
- Temperature Range – Operating:-40 ~ +85; storage: -40 ~ +125
- Humidity – 10% ~ 90% relative humidity, no condensation
You’ll find more details including an 18-page user manual in the product page. This module is sold for $9.06 on eBay, and $9.49 on Aliexpress.
Ebyte ME3612 NB-IoT wireless module.
Specifications:
- Connectivity
- Narrow band cellular IoT (NB-IoT) network communication, using about 180KHz bandwidth
- Download: 34Kbps; upload: 66Kbps
- Bands:
-
B3 1710 ~ 1785MHz (TX), 1805 ~ 1880MHz (TX)
-
B5 824 ~ 849MHz (TX), 869 ~ 894MHz (TX)
-
B8 880 ~ 915MHz (TX), 925 ~ 960MHz (TX)
-
- SIM/USIM card compatible;
- Complies with 3GPP TS 27.007, 27.005 AT command
- Supply Voltage – 3.4V ~ 4.2V (typical 3.8V)
- Low power modes – PSM, EDRX
- Dimensions – 30 x 30 x 2.3mm; 80-pin LCC package
I could not find a product page on the official website, but a ZIP file includes all documentation mostly in Chinese, but also in English, as well as Windows based tools (e.g. ZTE Log Catching Tools ) and drivers.
The module does not appear to be particularly inexpensive however, as it is sold for $39.69 on eBay. There’s no such Ebyte module on Aliexpress, but interestingly the exact same module is sold under another brand (Gosuncn) for just $17.14 shipped.
You’ll find more modules with pricing on Ebyte stores on eBay and Aliexpress.
Thanks to Christopher for the tip.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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I wouldn’t touch their ZigBee modules with a barge pole, simply because TI has had way too many issues with their ZigBee chipsets.
Their LoRA modules are surprisingly affordable though.
I just bought some of their Zigbee modules to develop a project around, what are the TI chipset issues? $5.55 for the E70 Zigbee transceiver and Cortex M3 module is crazy, the next cheapest I found is like $12.
Link on taobao https://item.taobao.com/item.htm?spm=a230r.1.14.32.6df2526aLIFwOc&id=8759062935&ns=1&abbucket=10#detail
ZTE is dead, also note that their LoRa module cannot change bandwidth(Seems to be 500Khz, which is not compatible to LoRa gateways using SX1301 which needs to be 125Khz ), and it seems that they only change SF.
ZTE is dead in the US, but in other countries it should be OK.
Thanks for the info about LoRa. Odd that a SX1278 chip can be made not to work with SX1301 though.
I think you have already covered these? But might interest new folk.
http://cpham.perso.univ-pau.fr/LORA/RPIgateway.html
For anyone that is thinking about using their UART LoRa modules. Don’t rely on the crypto that they do as it’s basically useless (https://github.com/fifteenhex/ebyterfmodulefuntime) aside from making it impossible to use them with other LoRa modules.
Yeah, from the GitHub crypto.txt: “According to the datasheet the transparent serial modules and DTU (module in a case) have a super secret code that protects the data being transmitted. The super secret code is XOR’ing a byte of a static key with each byte of data being sent. Recovering the key is trival and all units apparently use the same key.. doh.” The key is in the GitHub .c source example.