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[Interface de communication]： UART
[Fréquence de travail]：2,4 GHz
[Puissance de transmission]： 4,5 dBm
[Distance de communication]：200m
[Méthode d'emballage]：SMD
[Taille du produit]：14*20 mm
[Introduction]：EWM181-Z04SP is a small-sized, 2.4GHz frequency band, PCB antenna interface ZigBee3.0 to serial port wireless module designed and produced by Ebyte. It is a SMD package with a maximum transmit power of 4.5dBm and a pin spacing of 1.27mm. It comes with self-organizing network firmware and is simple and easy to use. It is mainly suitable for data transmission application scenarios.
Magasin officiel| Main parameters | performance | Remark | |||
| minimum value | Typical value | maximum value | |||
| Working voltage (V) | 2 | 3.3 | 3.6 | ≥3.3V guarantees output power | |
| Communication level (V) | 3.3 | Using 5V TTL risks burning out | |||
| Working temperature (℃) | -40 | - | 85 | Industrial grade design | |
| Working frequency band (GHz) | 2.4 | - | 2.48 | Support ISM band | |
| Power consumption | Emission current (mA) | 35 | Instantaneous power consumption | ||
| Receive current (mA) | 27 | ||||
| Sleep current (μA) | 0.8 | long dormancy | |||
| Maximum transmit power (dBm) | 3.5 | 4 | 4.5 | ||
| Receiving sensitivity (dBm) | -98 | -99 | -100 | Over-the-air speed is 250kbps | |
| Main parameters | describe | Remark | |
| Communication distance | 200m | Sunny and open space, onboard PCB antenna, height 2 meters, air rate 250kbps | |
| protocol | ZigBee | ||
| Communication interface | UART | ||
| Packaging method | SMD type | TTL level | |
| pass-through | Packet length | 150Bytes | |
| Fixed-point broadcast/multicast | 75Bytes | ||
| fixed-point unicast | 128Bytes | ||
| Interface mode | 1. 27mm | ||
| Overall dimensions | 14*20mm | ||
| Antenna interface | PCB | Equivalent impedance is about 50Ω | |
| Main parameters | performance | Remark | |
| minimum value | maximum value | ||
| Supply voltage (V) | 0 | 3.6 | Exceeding 3.6V will permanently burn the module |
| Blocking power (dBm) | - | 10 | Less likely to be burned if used at close range |
| Working temperature (℃) | -40 | 85 | Industrial grade |