RP2040 WiFi 보드 -ESP8285, UFL
(Challenger NB RP2040 WiFi with U.FL connector)
개요
- 본 제품은 RP2040 WiFi 보드 -ESP8285, UFL입니다.
- 아두이노/CircuitPython 개발환경의 피더 보드 포맷의 마이크로컨트롤러 보드로 RP2040 칩 및 ESP8285 WiFi 칩을 장착하고 있습니다.
- 보드 양면으로 GPIO를 접근할 수 있으며, 충전회로는 포함하고 있지 않습니다.
- 안테나를 위해 UFL 커넥터를 장착하고 있습니다.
특징
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WiFi
Just like the Challenger RP2040 WiFi it has a ESP8285 WiFi chip. For those of you that is unfamiliar with this device, it is basically an ESP8266 device with an integrated 1MByte of flash memory. This allows us to have an AT command interpreter inside this chip that the main controller can talk to and connect to you local WiFi network. The communications channel between the two devices is an unused UART on the main controller and the standard UART on the ESP8285. As simple as it can be.
The ESP8285 chip comes pre-flashed with Espressif's AT command interpreter stored in the internal 1MByte of the ESP8285. This interpreter support most of the operating and sleep modes of the standard ESP8266 framework which makes it easy to work with. Talking to the device is as easy as opening the second serial port (Serial2), resetting the ESP8285 and start listening for events and sending commands
I2C Flexibility
On this board we are also introducing our own take on the popular Groove format from Seeed Technologies. We wanted to make it easier to build highly integrated stuff using our boards and cables normally take up a lot of room and are messy to deal with. And with the experience from another project we decided to used a FPC connector that will allow you to use a flex cable that is only 2.5mm wide and 0.13mm thick. The cable can be bent and shaped to fit you enclosure exactly and the taped into place taking up in practice no place at all.
USB Type C
In the recent years we have noticed that we are seeing more and more USB Type C cable laying around the lab due to the fact that all new phones and accessories use them. As of yet we haven't seen any shortage of micro USB cables but we are not getting any new ones any more and old ones do break occasionally. So we decided to go for a USB Type C connector for this board. A bonus of this is that they are quite bit more durable and you don't have to fiddle with the cable before plugging it in.
On board antenna or external antenna
The most common version is with an on board chip antenna which just works straight out of the box. The second version has a U.FL connector on board which requires you to add an external antenna for your system. You can basically use any 50ohm 2.45GHz antenna and it will work just fine.
Make sure you select the appropriate version for your experiments
문서
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Using the Arduino environment
We've teamed up with Earle F. Philhower over at his Github page to provide Arduino support for our RP2040 based boards. You can follow the instructions on Earle's github page or you can check out our instructions here on how to install the package.
MicroPython
The Challenger RP2040 WiFi board is fully compatible with both the micropython package found at the Raspberry Pi site as well as Adafruits CircuitPython. Instruction are available on how to install the python interpreter of your choice is available on respective web site.
- Datasheets
- Design files
연관제품
- 연관제품 1