2022新品 Raspberry Pi Pico W 高性能微控制器板 RP2040 開發板
Raspberry Pi Pico W 將 WiFi + BLE(即將推出)無線網路引入Pico平台,同時保持與的Pico引腳完全相容。
《影片》: https://youtu.be/QIdyTlmdVW8
Raspberry Pi Pico W adds on-board single-band 2.4GHz wireless interfaces (802.11n) using the Infineon CYW4343 while retaining the Pico form factor. The on-board 2.4GHz wireless interface has the following features: Raspberry Pi Pico W使用英飛淩CYW4343增加了板載單頻段2.4GHz無線介面(802.11n),同時保留了Pico外形尺寸。板載 2.4GHz 無線介面具有以下特點:
The antenna is an onboard antenna licensed from ABRACON (formerly ProAnt). The wireless interface is connected via SPI to the RP2040 microcontroller./該天線是從ABRACON(以前稱為ProAnt)授權的板載天線。無線介面通過SPI連接到RP2040微控制器。
Due to pin limitations, some of the wireless interface pins are shared. The CLK is shared with VSYS monitor, so only when there isn’t an SPI transaction in progress can VSYS be read via the ADC. The Infineon CYW43439 DIN/DOUT and IRQ all share one pin on the RP2040. Only when an SPI transaction isn’t in progress is it suitable to check for IRQs. The interface typically runs at 33MHz./由於引腳限制,某些無線介面引腳是共用的。CLK 與 VSYS 監視器共用,因此僅當沒有正在進行的 SPI 事務時,才能通過 ADC 讀取 VSYS。英飛淩CYW43439 DIN/DOUT和IRQ在RP2040上共用一個引腳。僅當 SPI 事務未在進行時,才適合檢查 IRQ。該介面通常以 33MHz 的頻率運行。
For best wireless performance, the antenna should be in free space. For instance, putting metal under or close by the antenna can reduce its performance both in terms of gain and bandwidth. Adding grounded metal to the sides of the antenna can improve the antenna’s bandwidth./為了獲得最佳無線性能,天線應位於可用空間中。例如,將金屬放在天線下方或附近會降低其在增益和頻寬方面的性能。在天線的側面添加接地金屬可以提高天線的頻寬。
DC-DC,3000mA
資料路徑:www.waveshare.net/wiki/Raspberry_Pi_Pico_W