User's Manual

TYLC4v1.0.0 User manual
2.2 Pin definition
Version1.0.0
4
2. Module Interfaces
2.1 Size Package
TYLC4 has two rows of pins and the spacing between each two pins is 2mm.
TYLC4 size: 16.69mm (W)×16.66mm (L) ×3.5mm (H). TYLC4 size is shown in figure2：
Figure 2.1, TYLC4 dimensional drawing
The interface pin definition is shown in Chart 1:
Chart 1 TYLC4 Interface Pin Configuration Instruction
Table 2.1，WR1 pins description
Pin Symbol IOType Function
1 RST I/O
Hardware reset pin (effective at low electrical
level, with pull-up resistor inside)
2 EN I
Module enabling pin needs to receive 3.3V power
supply
3 GND P Power reference ground
4 GPIO14 I/O GPIO_14
5 GPIO12 I/O GPIO_12
6 GPIO13 I/O GPIO_13
7 GPIO4 I/O GPIO_04
8 GPIO5 I/O GPIO_05
9 RXD0 I/O UART0_RXD 1
10 TXD0 O UART0_TXD 1
11 VCC P Module’s power pin (3.3V)
Notes: P stands for power pin, I/O stands for input/output pin.
RST is only the module hardware reset pin, which cannot erase WiFi distribution network
information.