Changes are you have two drivers for the CH340 USB-to-serial chip, resulting in two devices, and the Arduino IDE happens to pick the working one while PlatformIO picks the non-working one. For several versions now, macOS has CH340 drivers built-in, written by Apple. So you have to uninstall the ones from WCH. Improve USB audio - optional Mac workaround Libraries updated: Audio, OctoWS2811, ADC, i2ct3, IRremote, SPI, FastLED Optimize analogRead Version 1.29 Add support for Arduino 1.6.9 Add support for running on Raspberry Pi (Linux ARM) Drop support for Arduino 1.6.3 and 1.6.6 USB Keyboard improved media keys, now Windows compatible.

Arduino Nano Mac Usb Driver
Mac Arduino Usb Driver Free

Most new users find it difficult to get the USB drivers. Because Arduino Uno Clone does not use the same driver chip with Arduino Uno R3 Original. But don't worry, Srishti Robotics have provided two drivers.

Use the USB / Serial CH340 / CH341 Driver‘s Download:

Windows 32 bit : Download

Windows 64 bit : Download

Linux : Download

MAC : Download

USB Serial Driver CH 340 can be used for Windows XP / Win 7 / Wind 8. I try to use Windows 8.
If USB Serial Drivers are successful it will be visible in the Devices Manager of Windows

Arduino Nano Mac Usb Driver

A prerequisite to program ESP*-based modules usually is to establish a communications channel from your development platform (PC, Mac, Linux) to the device over USB. This in turn requires your system to detect the USB-to-Serial (aka USB-to-TTL, aka USB-to-UART) adapter on the ESP8266 or ESP32 module. There are two commonly used adapters in the wild these days:

Silicon Labs CP210x
Winchiphead CH340x / CH341x

Popular modules that use the CP210x are:

NodeMCU v1.0 (i.e. V2) module
WeMos D1 mini Pro (some revisions)

Examples of modules that use the CH340G chip are:

WeMos D1 mini
D1 mini Lite

Note that there is no harm done if you install both drivers even if you currently just use one! If you are not sure which adapter your ESP8266/ESP32 module uses then just install both.

Silicon Labs CP210x§

Silicon Labs maintains a page in English that lists downloadable driver binaries that also contains installation instructions.

Winchiphead CH340x / CH341x§

Winchiphead (WCH) maintains its website only in Chinese. However, the download page for the drivers is so simple that even non-Chinese speakers will find the right download link.

Warning

Mac Arduino Usb Driver Free

Some systems require a reboot before the driver installation can be successfully completed. The installer may or may not tell you about this! If you later connect the ThingPulse device and the system does not recognize it try rebooting as a first measure.