MakerFocus 6pcs I2C OLED Display Module 0.91 Inch I2C SSD1306 OLED Display Module Blue I2C OLED Screen Driver DC 3.3V~5V for Ar duino

My SSD 1306 libraries worked great with the Adafruit SSD 1306 Libraries. Bright and low-power, they are great for outdoor use. Adafruit library examples show that they really know how to make things. The libraries do not come with Hello World examples in the standard library, so just do a Google search for a Hello World example to get a basic understanding. Put the display into the 180-degree rotation, and rotate the display 120 degrees. The setRotation() method When a setup is completed. An overview of the basic use of those libraries can be found here. Display the following. The display() method There's a display. The clearDisplay() method There's a display. There's a display. The setCursor() method This is the origin of the text displayed. Then print ("blah") There's a display. Input - Println("- Add "blah" to the end of the last word, then add a new line). The hardware is nice and small, and the displays are good, as well. Unlike a breadboard, which is usually 3 rows high, this one is about 12 slots wide. (In all, there are about 24 slots. ) The voltage range is impressive and seems to go as low as 3. 4 V. I am using version 4 but it appears to be running on 3. The voltage is 5v and there aren't any (5v from the wall, however, through a diode on the Arduino). The process takes about 5 minutes. If you made changes to the watch dog timer, you might be able to get the whole proto mini project to run at under 3 mA standby while still maintaining the display. On the display, the refresh rate is very fast, and the cameras do not detect any multiplexing or flicker. Despite the lack of headers, the plated through holes are extremely well done, and they get hot during soldering. There are a lot of holes, which makes it a strong product. Getting the header pins out of your board will be tough afterward so use Google to get some tricks on removing header pins. I hope you found this review helpful. If so, please give it a thumbs up. People had a lot of questions about this, I think.

Sage Lara

| Apr 25, 2021

It's tiny, high resolution, and great for This card is based on the SSD1306 display driver and is powered by the very popular I2C bus. Text will look sharp and crisp when you have the resolution of 128x32 pixels. These are great, and I am very pleased with them. LCD is a very good option if you want a compact LCD. No need to add large, bulky, backlit LCDs to your project, this will work just fine. I have purchased several different products from MakerFocus, and their products have always been As of version 2. 0, it does not include 128x32 size, so if you wish to use it on ESP Easy firmware, you will need to modify it to include it as it does not yet have that. There are no devices in development It is very likely, however, that the patch to enable that size will be merged in the subsequent.

Aziel Ware

| May 01, 2021

I have updated version 1 of the blog. My investigation continues into why I am still experiencing problems with this device. Since posting, I have found out that, at least with the NodeMCU8266, There are voltage dropouts that occur when the pins are pulled in. I may not need push-pull resistors, contrary to what I perceived from my first impression. (The schematic diagram in the picture list suggests that they are integrated. -) I have confirmed that the device can also work with an Arduino Uno, so it appears to be both 3v3 and 5v compliant. It is only possible to use the Uno if you have This 7kOhm resistor has a pull-up effect It seems odd that the SCL line is up. * * * Nevertheless, I have been unable to get it to work consistently, and I'm not entirely certain that the display module is the problem. I guess I should get a logic analyzer and see what's up. Despite the fact that my rating was originally 4 stars, I have changed it to 4 stars temporarily, because a) it may work as expected and b) the vendor has been extremely helpful in trying to resolve the issue. People with whom you can trust are good. (In addition, they have requested their supplier to include headers, but have not succeeded. In any case, it is not a critical point. )***

I'm going for I give this a 4 out of 5. A total of two units were delivered to me Their jobs both require them to 1) I understand R's frustration. A review of Arnold's book. Although the Adafruit library does not work in sample code (ssd1306_128x32_i2c). It is still necessary to know I2C pretty well. During my hard-earned lessons, I've learned a lot of lessons. Was using 3V) as MCU plus this display and an Adafruit temperature/humidity sensor, all My understanding of I2C was that it requires pulling The sensor has built-in pull-ups for SDA and SCL, but the resistors on SDA/SCL are not necessary There's only one set you need, and theoretically you don't need more than one. I was able to detect both devices using the I2C scanner code that is provided in the Adafruit library examples after establishing communication between the sensors. I added 2 resistors to 3 to get the display to turn on, but there was no life from the display. From SDA and SCL to 3v Of course, a piece for each person. Yes, of course! The 7kOhm frequency range is from 100 to 2300 ohms I don't know. 2) I can't understand why the display's I2C address appeared on the bus yet did not However, including a rough schematic in the package would speed up debugging, especially for those who are (BTW, I've looked at the Adafruit library and it seems to have an optional reset pin that can be changed in the source to LED_BUILTIN, The text isn't very legible without strong readers, )

2). The crisp is very very small, but it is crisp. 3) There are plausible economic (seller) and utility (buyer) reasons for avoiding pre-marketing Adding headers to the soldering iron. It might not break the bank to throw in a couple of 4-footers Do you pinner? Four) The mounting holes are not present!.

Serena Hardin

| Dec 25, 2020