|0.0.0||Mar 7, 2023|
ARCHIVED - moved into the main Embassy repo https://github.com/embassy-rs/embassy
WIP driver for the CYW43439 wifi chip, used in the Raspberry Pi Pico W. Implementation based on Infineon/wifi-host-driver.
- Station mode (joining an AP).
- AP mode (creating an AP)
- Sending and receiving Ethernet frames.
- Using the default MAC address.
- RP2040 PIO driver for the nonstandard half-duplex SPI used in the Pico W.
- Using IRQ for device events
- GPIO support (for LED on the Pico W)
- Setting a custom MAC address.
- Bus sleep (unclear what the benefit is. Is it needed for IRQs? or is it just power consumption optimization?)
Running the examples
cargo install probe-rs-cli
Example 1: Scan the wifi stations
cargo run --release --bin wifi_scan
Example 2: Create an access point (IP and credentials in the code)
cargo run --release --bin tcp_server_ap
Example 3: Connect to an existing network and create a server
WIFI_NETWORK=MyWifiNetwork WIFI_PASSWORD=MyWifiPassword cargo run --release
After a few seconds, you should see that DHCP picks up an IP address like this
11.944489 DEBUG Acquired IP configuration: 11.944517 DEBUG IP address: 192.168.0.250/24 11.944620 DEBUG Default gateway: 192.168.0.33 11.944722 DEBUG DNS server 0: 192.168.0.33
This example implements a TCP echo server on port 1234. You can try connecting to it with:
nc 192.168.0.250 1234
Send it some data, you should see it echoed back and printed in the firmware's logs.
This work is licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.