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Nodemcu esp8266 firmware how to#
Nodemcu esp8266 firmware install#
Nodemcu esp8266 firmware drivers#

Nodemcu esp8266 firmware drivers#

The CH34* drivers seem more community-supported. The v3 is larger and has a CH34* UART module, which thin and rectangular: NodeMCU v3 with CH34* circled You can identify it as the small square chip near the micro USB port: NodeMCU v2 with CP2102 circled

The v2 is smaller and has a CP2102 USB to UART module. The two versions I’m aware of are the v2 and the v3.

Nodemcu esp8266 firmware install#

Depending on which one you got, you’ll need to install the corresponding USB driver in order to flash its firmware. There are a couple of different versions of NodeMCUs (I’m not convinced they’re all actually from the same manufacturer). Update – Jan 4, 2019: The default CE pin has been changed from D0/GPIO16 to D2/GPIO4 as of version 1.8.6. The only thing to do here is to connect the ESP8266 to the NRF24L01+ using the jumper cables. I found this guide pretty handy, but I’ve included some primitive instructions and photos below.

Nodemcu esp8266 firmware how to#

If you get a bare ESP8266 module, you’ll need to figure out how to power it (you’ll likely need a voltage regulator), and you’ll probably have to be mildly handy with soldering. You’ll need these to connect the ESP8266 and the NRF24L01+.

Dupont female-to-female jumper cables (at least 7).

You can also get one that supports an external antenna if range is a concern ( link*). You can get a pack of 10* on Amazon for $11. Items from Chinese sellers on ebay usually come at significant discounts, but it often takes 3-4 weeks to receive items you order. This should run you approximately ~$10, depending on where you shop, and how long you’re willing to wait for shipping.

How to use the web UI and REST API to pair/unpair and control bulbs.

How to install and configure the firmware.

I wanted to follow up with a blog post that details how to use this.

Secure the gateway with a username/password (note that the 2.4 GHz protocol used by the bulbs is inherently insecure, so this only does so much good).

Exposes a nice REST API as opposed to the clunky UDP protocol.

The OTS gateways are limited to four groups.

This allows you to use an NRF24L01+ 2.4 GHz tranceiver module* and an ESP8266* to emulate a WiFi gateway, which provides the following benefits: In order to control them, you either need a remote* (~$13), which allows you to control them directly, or a WiFi gateway* (~$30), which allows you to control them with a mobile app or a UDP protocol.Ī few days ago, I posted my Arduino code to emulate a Milight WiFi gateway on an ESP8266 ( link). Milight bulbs* are cheap smart bulbs that are controllable with an undocumented 2.4 GHz protocol.