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4.Pin description

Pin description#

Pin map#

Pin description#

Pin NumberPin DefineTypeDescription
1GND-Groud
2VBAT_WLIBattery supply input
3VBAT_WLIBattery supply input
4GND-Ground
5VDDIO_3V3_WLIDigital I/O supply.
6GND-Ground
7NC---
8NC---
9NC---
10NC---
11NC---
12NC---
13GND-Ground
14NC---
15GND-Ground
16NC---
17NC---
18NC---
19NC---
20NC---
21SPI_MISOI/OSPI Master In Slave Out
22SPI_SCKI/OSPI Clock
23SPI_MOSII/OSPI Master Out Slave In
24SPI_SSI/OSPI Slave Select
25GND-Ground
26VDD_3V3IPower supply for I/O and the internal regulator
27VDD_3V3IPower supply for I/O and the internal regulator
28GND-Ground
29UART2_RTSI/OActive-low request-to-send signal for UART2 interface (Not Used)
30UART2_CTSI/OActive-low clear-to-send signal for UART2 interface (Not Used)
31UART2_RXDISerial data input for UART2 interface (Not Used)
32UART2_TXDOSerial data output for UART2 interface (Not Used)
33NC---
34RESETIRESET pin (Active Low)
35NC---
36NC---
37GND-Ground
38VBATIPower supply when VDD_3V3 is not present.
39GND-Ground
40GPIO1I/OGPIO1 pin
41BOOTIBOOT MODE pin (Active low)
42FUNCTIONIFUNCTION pin (Active Low)
43GPIO5I/OGPIO5 pin
44GPIO6I/OGPIO6 pin
45GPIO7I/OGPIO7 pin
46GPIO8I/OGPIO8 pin
47GPIO9I/OGPIO9 pin
48Wi-Fi_STATUSI/OWi-Fi Status pin
49MODE_STATUSI/OMODE Status pin
50SPI_Data_Ready(GPIO14)I/OIn SPI Mode, It is used to SPI_Data Ready Pin
51JTAG_TRSTIFor normal operation, if JTAG is not used, this pin can be left unconnected (NC)
52JTAG_TDOI/OFor normal operation, if JTAG is not used, this pin can be left unconnected (NC)
53JTAG_TDII/OFor normal operation, if JTAG is not used, this pin can be left unconnected (NC)
54JTAG_TMSIFor normal operation, if JTAG is not used, this pin can be left unconnected (NC)
55JTAG_TCKIFor normal operation, if JTAG is not used, this pin can be left unconnected (NC)
56GND-Ground
57GND-Ground
58GND-Ground
59GND-Ground
60NC---
61UART1_RTSI/OActive-low request-to-send signal for UART1 interface (Use)
62UART1_CTSI/OActive-low clear-to-send signal for UART1 interface (Use)
63UART1_RXDISerial data input for UART1 interface (Use)
64UART1_TXDOSerial data output for UART1 interface (Use)
65~73GND-Ground