MRE3S WiFi Module Spec Manual Version： 1.
MRE3S WiFi Module Spec Manual 1. MRE3S Module Introduction MRE3S is a 2.4G Wi-Fi module using MT7682SN chipset , which integrates a 1T1R 802.11 Wi-Fi radio, a 192MHz ARM® Cortex®-M4 CPU, some special ports and multiple slow IOs. A PCB printed antenna is used in MRE3S, which max gain is 1.5dBi. Module Picture as below： V1.
MRE3S WiFi Module Spec Manual 2. GPIO Definition GIPO NAME FUN 1 FUN 2 FUN 3 FUN 4 Light 1 GPIO16 SW_RST 2 GPIO17 ADC 3 EN 4 GPIO14 5 GPIO11 RXD2 PWM3 I2S_RX 6 GPIO1 U1CTS PWM1 I2S_TX I2C_SDA1 G 7 GPIO0 U1RTS PWM0 I2S_RX I2C_SCL1 WW/CCT 8 3V3 9 GND 10 GPIO4 11 GPIO12 12 GPIO13 13 GPIO2 RXD1 PWM0 I2S_WS R 14 GPIO3 TXD1 PWM1 I2S_CK CW 15 RXD0 GPIO21 16 TXD0 GPIO22 PWM5 PWM4 B I2S_MCLK TXD2 I2S_TX I2S_WS V1.
MRE3S WiFi Module Spec Manual 3. Size and Package Space requires 3.5mm or above。 Front perspective view V1.
MRE3S WiFi Module Spec Manual [Recommended backplane pad package] V1.
MRE3S WiFi Module Spec Manual 4. Electrical parameters Absolute electrical parameters Para Description MIN MAX Unit VCC Power Supply -0.3 3.63 V VIO IO Input -0.3 5.5 V Tstg Storage Temp -20 85 ℃ Normal working conditions Para Description MIN VCC Power Supply 2.97 VIO IO Input VIL Typical MAX Unit 3.3 3.63 V -0.3 — 3.63 V IO Low Level Input -0.3 — VCC*0.25 V VIH IO High Level Input VCC*0.75 — VCC V VOL IO Low Level Input 0 — VCC*0.
MRE3S WiFi Module Spec Manual 5. RF index Basic Parameter Operation Frequency: 802.11b/ g/ n(HT20) 2412 ‐2462MHz；n40:2422-2452MHz WiFi Standard IEEE 802.11b/g/n Transmission rate 11b：1,2,5.5 and 11Mbps 11g: 6,9,12,18,24,36,48 and 54 Mbps 11n：HT20 MCS0~MCS7, HT40 MCS0~MCS7 Channel CH1~CH11 (HT40:CH3~CH9) Antenna Type: PCB printed antenna TX Indicator Parameter 11b 1Mbps 11g 6Mbps 11n HT20 MCS0 11n HT40 MCS0 MIN Typical Value MAX Unit Transmission Power — 19.
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7. OEM/Integrators Installation Manual List of applicable FCC rules This module has been tested and found to comply with part 15.247 requirements for Modular Approval. Summarize the specific operational use conditions This module can be applied in household electrical appliances as well as TV and IP camera. The input voltage to the module should be nominally 2.97-3.63 VDC ,typical value 3.3VDC and the ambient temperature of the module should not exceed 85℃.
cause interference. The operator of the host product will be obligated to stop operating the device until the interference have been corrected , WIFI testing using QRCT in FTM mode. Additional testing, Part 15 Subpart B disclaimer The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part15 digital device.
FCC statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
