NODEMCU-32-S2 development board similar to ESP32-S2-Saola-1

dcexpert

NODEMCU-32-S2 development board similar to ESP32-S2-Saola-1 [Copy link]

 

When researching ESP32-S2-Saola-1, I found that Essence has launched a new NODEMCU-32-S2 development board, which has similar functions, but the price is more than half cheaper. The ESP32-S2-Saola-1 is 48 yuan in Essence's official flagship store, while the NODEMCU-32-S2 development board is 21.9.

As can be seen from the picture, the two development boards are of similar size and have the same layout. Both use dual in-line pin headers, with 19 pins on each side.

Main differences:

• NODEMCU-32-S2 uses CH340 and GPIO12 to drive ordinary LEDs. USB does not use ESD, and a 100uF tantalum capacitor is used on the power supply to improve the instantaneous change driving capability.
• ESP32-S2-Saola-1 uses CP2102 and the indicator light uses WS2812, which is connected to GPIO18.

Although the size looks similar, NODEMCU-32-S2 is actually 100mil shorter in width.

In addition, perhaps due to negligence, the two LEDs of NODEMCU-32-S2 were soldered in the opposite direction.

dcexpert

Another difference is that the pin definitions of the dual-row pins are somewhat different and cannot be directly replaced. However, the pin definitions of the two modules are the same.

The new ESP32-S2 module is priced similarly to the ESP8266 (slightly higher), making it a great replacement for the ESP8266.

freebsder

The OP has so many boards. Is this a prelude to making mpy a personal business card?

dcexpert

freebsder posted on 2020-7-11 15:25 The OP has so many boards. This is the prelude to making mpy a personal business card.

Can we play together?

freebsder

dcexpert posted on 2020-7-11 15:35 Can we play together?

Microcontrollers are now my bread and butter, not the time to play with mpy, haha. I will play with mpy when I am no longer involved in microcontrollers.

dcexpert

freebsder posted on 2020-7-11 15:41 MCU is now a bread and butter for me, not the time to play with mpy, haha. When I stop working on MCU, I will play with mpy again.

mpy will also become a profession, especially in the education and Internet of Things industries

freebsder

dcexpert posted on 2020-7-11 16:00 mpy will also become a profession, especially in the education and Internet of Things industries

Yes, it seems that mpy has a place in children's education now.

joeymm

Many people who do low-level development are relatively conservative. In fact, mpy is more efficient for application development that is not very real-time.

dcexpert

joeymm posted on 2020-7-19 12:49 Many people who do low-level development are relatively conservative. In fact, mpy is more efficient for application development that is not very real-time

That's right, I believe more applications will gradually use mpy.