Engineering principles

It uses WB3S dual-mode as the main control, connects to the Tuya Cloud platform, and uses the mobile APP to control mode changes. PWM control RGB light color, Micro USB 5V power supply~~~~

Features

1. DIY cost is extremely low: 0.2 per lamp bead, 15 modules with free shipping, Jialichuang 5 yuan for proofing, and the cost of a light panel is estimated to be more than 20 points

2. Simple development, suitable for electronic enthusiasts who do not need coding foundation. The module is customized based on functions, making it easy and convenient to debug. 3. The shell is inspired by the Espressif Moon Lamp (no 3D modeling skills). If you are interested, you can buy one on Pinduoduo https://mobile.yangkeduo.com/goods2.html?goods_id=15524905211&page_from=23&pxq_secret_key=PMKQQ7UZMLULBOTQ2QGC6PHBKBNX4DDVJ4SCHQI4DK4MK323HXSQ& share_uin=DDDRXBW2JDZ3L7Q2KPGEPMBIXE_GEXDA&refer_share_id= b8c86dc5738a49d28e4b74d06dba6fec&refer_share_uid=7840500823&refer_share_channel=copy_link&refer_share_form=text

Features

1. Support multiple monochrome displays

2. Support multiple scene modes

3. Support timing switch

Cloud platform building steps

1. Register a Tuya account and enter the homepage to create products

2. This routine uses a light strip, zero development, three-way PWM controlled RGB

3. The functions that can be added on the left are the default functions on the right (this routine only uses the simplest default functions: except for the microphone music rhythm, visual inspection is not suitable for this set of hardware. Other additions may also be used)

4. You can choose any one from the public version panel below, or develop your own. 5. Choose any module (WB3S used in this example)

6. The following is the most critical part of the entire zero-code development, the configuration of the firmware

Mobile APP use

Click the plus sign to add a device and configure the network for the WIFI module (it is recommended to turn on the Bluetooth on your phone)

Wait for the module to successfully configure the network and automatically return to the control interface.

Welding matters

** 1. The lamp bead specification sheet states that it is actually very easy to be damaged if the temperature is too high and for a long time, resulting in the inability to adjust some colors**

2. When welding, you should pay special attention. The triangular notch mark on the lamp bead corresponds to the 4th PIN (I thought it was the 1st PIN by default when welding, and finally tested it with the diode block of a multimeter, only to find that it was soldered backwards)

There are basically no special precautions for other welding