[IC] : CC2531
[Frequency] : 2.394~2.507GHz
[Protocol] : Zigbee
[Distance] : 200m
[Interface] : USB
[Introduction] : E18-2G4U04B uses CC2531 RF chip imported from Texas Instruments. The chip integrates 8051 microcomputer and wireless transceiver, and integrates PA + LNA, which greatly expands the communication distance and improves communication stability, and it is equipped with ADC sampling, remote PWM output control, remote GPIO control and other functions.
| RF Parameter | Value | Remark |
| Frequency | 2394~2507 MHz | Support ISM band |
| Transmitting power | 4 dBm | - |
| Receiving sensitivity | -96.4 dBm | Air data rate: 250kbps |
| Communication protocal | ZigBee | - |
| Test distance | 200m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2.5m, air data rate: 250kbps |
| Hardware Parameter | Value | Remark |
IC | CC2531F256RHAT/QFN40 | Built-in PA+LNA |
FLASH | 256 KB | - |
RAM | 8 KB | - |
Core | 8051 MCU | - |
Size | 59 * 18 mm | With housing |
Antenna type | PCB | - |
Powered by | USB | - |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Operating voltage | 2.7 | 5 | 5.5 | V | powered by USB |
| Operating voltage | 2.0 | 3.3 | 3.6 | V | powered by pcb power supply hole |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| Transmitting current | - | 31.5 | - | mA | Instant power consumption |
| Receiving current | - | 26 | - | mA | powered by USB |
| Sleep current | - | - | - | μA | - |
| Operating temperature | -40 | 20 | +85 | ℃ | - |
| Operating humidity | 10 | 60 | 90 | % | - |
| Storage temperature | -40 | 20 | +125 | ℃ | - |
| No. | Name | Direction | Function |
| 1 | P1.4 | Input/output | GPIO（see more from CC2531 datasheet） |
| 2 | P1.5 | Input/output | GPIO（see more from CC2531 datasheet） |
| 3 | P1.6 | Input/output | GPIO（see more from CC2531 datasheet） |
| 4 | P1.7 | Input/output | GPIO（see more from CC2531 datasheet） |
| 5 | VCC | Power supply | 2.0V—3.6V（do not power the module via USB at same time） |
| 6 | DD | Input/output | P2_1 for program download（see more from CC2531 datasheet） |
| 7 | DC | Input/output | P2_2 for program download（see more from CC2531 datasheet） |
| 8 | RESET | Input | Reset(Reset circuit available） |
| 9 | GND | Power supply | Ground |
| 10 | P0.2 | Input/output | GPIO（see more from CC2531 datasheet） |
| 11 | P0.3 | Input/output | GPIO（see more from CC2531 datasheet） |
| 12 | P0.4 | Input/output | GPIO（see more from CC2531 datasheet） |
| 13 | P0.5 | Input/output | GPIO（see more from CC2531 datasheet） |
| 14 | P0.6 | Input/output | GPIO（see more from CC2531 datasheet） |
| 15 | P0.7 | Input/output | GPIO（see more from CC2531 datasheet） |
| 16 | LED | Signal indicator | Connect to P1.1 of CC2531，drive of high level lights |
| 17 | LED | Signal indicator | Connect to P0.0 of CC2531，drive of low level lights |
| 18 | Button | Function | Connect to P1.3 of CC2531，effective at low level |
| 19 | Button | Function | Connect to P1.2 of CC2531，effective at low level |
| Product manuals |
【Software】E18_Software_Datasheet_EN_v1.2  |
| 【Hardware】E18-2G4U04B_UserManual_EN |
| Communication protocol |
| 【Communication protocol 】Communication protocol (for E18) |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://cdebyte.pt.aliexpress.com |
| 【amazon】：https://www.amazon.co.uk |
| 【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 |
| Model | IC | Interface | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E18-2G4Z27SP | I/O | CC2530 | 2.4G | 27 | 0.8 | - | SMD | 16*27 | ZigBee | ||
| E18-MS1PA2-PCB | UART I/O | CC2530 | 2.4G | 20 | 0.8 | - | SMD | 16 * 27 | ZigBee ad hoc network module | ||
| E18-MS1PA2-IPX | UART I/O | CC2530 | 2.4G | 20 | 1.2 | - | SMD | 16 * 22.5 | ZigBee Ad Hoc Network Module | ||
| E18-2G4U04B | USB | CC2531 | 2.4G | 4 | 0.2 | 250k | SMD | 59*18 | Zigbee | ||
| E18-2G4Z27SI | IO | CC2530 | 2.4G | 27 | 2.5 | 250k | SMD | 16*22.5 | Zigbee | ||
| E18-MS1-IPX | IO | CC2530 | 2.4G | 4 | 0.24 | 250k | SMD | 14.1*20.8 | Zigbee, with shield | ||
| E18-MS1-PCB | UART/IO | CC2530 | 2.4G | 4 | 0.2 | 250k | SMD | 14.1*23 | Zigbee, with shield |
