pinout.vvzero.com/src/zh/translate/wifi-pants.md

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2022-01-05 23:15:31 +08:00
<!--
---
name: WiFi Pants
class: board
type: power, iot
formfactor: pHAT
manufacturer: SLNGadget
collected: Other
description: WiFi and battery power for the Raspberry Pi
url: https://hackaday.io/project/8678-rpi-wifi
github: https://github.com/al177/esp_hat
buy: https://www.tindie.com/products/ajlitt/wifi-power-pants/
image: 'wifi-pants.png'
pincount: 40
eeprom: no
power:
'2':
ground:
'6':
'9':
'14':
'20':
'25':
'30':
'34':
'39':
pin:
'13':
name: ESP GPIO10
'15':
name: ESP SCLK
'16':
name: ESP CSO
'18':
name: ESP MISO
'22':
name: ESP MOSI
'27':
name: ESP CH_PD
'37':
name: ESP GPIO9
-->
# WiFi Pants
WiFi Pants is a WiFi and 5V boost power supply add-on board for your Raspberry Pi based around the ESP-12F.
The WiFi Pants board fits the outline of the Pi Zero, with only a small protrusion for the antenna, and only six GPIOs are needed on the Pi's expansion connector.
It communicates over the SDIO interface to provide WiFi capability for a direct alternative to a USB WiFi adapter for low-bandwidth applications, sufficient in most embedded projects.
Most notably, WiFi Pants can add WiFi to a Pi Zero while leaving the USB port free, and boosts any battery from as low as 3V to 5V at up to 2A to power the Pi and any other add-ons.
A JST-PH connector compatible with Sparkfun and Adafruit battery packs is included with the board. An undervoltage lock-out prevents batteries from draining below 2.7V. A soft power switch input lets a microcontroller or switch easily turn off or on the power supply.
Along with the soft power switch input, the 5 pin header exposes the Raspberry Pi's serial console, great for IoT projects where there is no screen but shell access is needed for setup. The header fits the 6 pin FTDI USB-to-UART cable.
WiFi Pants also works great with the Pi A+, B+, and 2 models.