[IC]：ASR6505
[Frequency]：410~490MHz
[Power]：21dBm
[Distance]：5.5km
[Size]：26* 16*2.8mm
[Introduction] ：E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type (pin pitch 1.1mm).
| RF Parameter | Value | Remark |
| Working frequency | 410~490 MHz | - |
| Transmitting power | 21 dBm | - |
| Test distance | 5.5Km | Lora 1kbps |
| Hardware Parameter | Value | Remark |
| Size | 26* 16*2.8 mm | - |
| Antenna type | Stamp hole/IPEX | - |
| IC | ASR6505 | - |
| Package | SMD | - |
| Electronic parameter | Min. | Typ. | Max. | Unit |
| Transmitting current(LoRa@2.4kbps) | 100 | 110 | 12 | mA |
| Receiving current(LoRa@2.4kbps) | 13 | 14 | 15 | mA |
| Shutdown current | 1.6 | 2 | 2.6 | uA |
| Transmit power | 20.6 | 20.8 | 21 | dBm |
| Receiving sensitivity | -139 | -140 | -140 | dBm |
| TCXO crystal | 32 | 32 | 32 | MHz |
| TCXO crystal voltage configuration | 1.8 | 2.2 | 3.0 | V |
| Recommended operating frequency | 410 | 433/470/490 | 490 | MHz |
| Power supply voltage | 2.6 | 3.3 | 3.7 | V |
| Communication level | 2.6 | 3.3 | 3.7 | V |
| No. | Name | Direction | Function |
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | LCD-SEG10 | Input/output | MCU GPIO |
| 3 | LCD-SEG11 | Input/output | MCU GPIO |
| 4 | LCD-SEG12 | Input/output | MCU GPIO |
| 5 | LCD-SEG13 | Input/output | MCU GPIO |
| 6 | LCD-SEG14 | Input/output | MCU GPIO |
| 7 | LCD-SEG15 | Input/output | MCU GPIO |
| 8 | LCD-SEG16 | Input/output | MCU GPIO |
| 9 | LCD-SEG17 | Input/output | MCU GPIO |
| 10 | I2C-SDA | Input/output | I2C-SDApin |
| 11 | I2C-SCL | Input/output | I2C-SCL pin |
| 12 | ADC-IN0 | Input | ADC input pin |
| 13 | ADC-IN1 | Input | ADC input pin |
| 14 | GPIO2 | Input/output | MCU GPIO |
| 15 | GPIO3 | Input/output | MCU GPIO |
| 16 | GPIO4 | Input/output | MCU GPIO |
| 17 | ADC_IN2 | Input | ADC input pin |
| 18 | GND | - | Ground wire, connected to the power reference ground |
| 19 | ANT | output | Antenna interface, stamp hole (50 ohm characteristic impedance) |
| 20~23 | GND | - | Ground wire, connected to the power reference ground |
| 24 | SPI-NSS | Input | SPI select pin, can select external SPI |
| 25 | SPI-SCK | Input | SPI-SCK pin, can be used as external SPI |
| 26 | SPI_MISO | output | SPI_MISO pin, can be used as external SPI |
| 27 | SPI_MOSI | Input | SPI MOSI pin, can be used as external SPI |
| 28 | LCD-SEG1 | - | MCU GPIO |
| 29 | LCD-SEG2 | Input/output | MCU GPIO |
| 30 | SWIM | Input/output | Program burning pin |
| 31 | NRST | Input | External reset pin |
| 32 | LCD-COM0 | Input/output | MCU GPIO |
| 33 | LCD-COM1 | Input/output | MCU GPIO |
| 34 | LCD-COM2 | Input/output | MCU GPIO |
| 35 | VREFP | Input | ADC reference voltage input |
| 36 | UART1-RX | Input | UART1-RX pin |
| 37 | UART1-TX | output | UART1-TX pin |
| 38 | VLCD | Input | VLCD pin |
| 39 | LCD-SEG0 | Input/output | MCU GPIO |
| 40 | GND | - | Ground wire, connected to the power reference ground |
| 41 | LCD-SEG3 | Input/output | MCU GPIO |
| 42 | LCD-COM3 | Input/output | MCU GPIO |
| 43 | LCD-SEG4 | Input/output | MCU GPIO |
| 44 | LCD-SEG5 | Input/output | MCU GPIO |
| 45 | UART0-RX | Input | UART0-RX pin |
| 46 | UART0-TX | output | UART0-TX pin |
| 47 | LCD-SEG6 | Input/output | MCU GPIO |
| 48 | LCD-SEG7 | Input/output | MCU GPIO |
| 49 | LCD-SEG8 | Input/output | MCU GPIO |
| 50 | LCD-SEG9 | Input/output | MCU GPIO |
| 51 | VCC | - | Power supply, range 2.5V ~ 3.7V (recommended to add external ceramic filter capacitor) |
| 52 | GND | - | Ground wire, connected to the power reference ground |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| 产品 型号 | Interface | IC | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | 技术 手册 | 样品 购买 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E78-868LN22S(6601) | SoC | ASR6601 | 868M | 22 | 5.6 | 0.018~62.5k | SMD | 14*20 | standard LoRaWan node module | ||
| E78-470LN22S(6601) | SoC | ASR6601 | 470M | 21 | 5.6 | 0.018~62.5k | SMD | 14*20 | LoRa SoC RF Module | ||
| E78-900TBL-01A | USB | ASR6505 | 850~925M | - | 5.5 | - | - | 70*36 | E78 series module test board | ||
| E78-900M22S1A | SoC | ASR6505 | 868M 915M | 22 | 5.5 | - | SMD | 26* 16*2.8 | LoRa Spread spectrum | ||
| E78-400M22S1C | SoC | ASR6601 | 470M 433M | 21 | 5.5 | - | SMD | 26*16*2.8 | LoRa Spread Spectrum | ||
| E78-400TBL-01 | USB | - | - | - | - | - | - | 58*28 | E78 series module test board | ||
| E78-400M22S1A | - | ASR6505 | 470M 433M | 21 | 5.5 | - | SMD | 26* 16*2.8 | LoRaWan node module | ||
| E78-868LN22S | - | ASR6501 | 900MHz | 21 | - | - | SMD | 20* 14*2.8 | LoRa RF Module，Wireless Module | ||
| E78-470LN22S | - | ASR6501 | 433M | 22 | 7 | 0.018k~62.5k | SMD | 14*20 | Low consumption, anti-interference |
