NEW PRODUCT – Monochrome 128×64 OLED graphic display
NEW PRODUCT – Monochrome 128×64 OLED graphic display! These displays are small, only about 1″ diameter, but very readable due to the high contrast of an OLED display. This display is made of 128×64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness!
The driver chip, SSD1306 can communicate in multiple ways including I2C, SPI and 8-bit parallel. We prefer SPI since its the most flexible and uses a small number of I/O pins so our example code and wiring diagram will use that.
The OLED and driver require a 3.3V power supply and 3.3V logic levels for communication. The power requirements depend a little on how much of the display is lit but on average the display uses about 20mA from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3v-5v into a high voltage drive for the OLEDs. You can run the entire display off of one 3.3V supply or use 3.3V for the chip power and up to 4.5V for the OLED charge pump or 3.3V for the chip power and a 7-9V supply directly into the OLED high voltage pin.
You’ll need a level shifter to communicate with this OLED using a 5V microcontroller such as an Arduino, but we include a DIP level shifter chip!
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Looks great … and good choice on the SSD1306 since it also supports I2C, unlike the SH1101A (SPI/8080 only … no I2C).
Wow! So much cool stuff is coming out just after Christmas! I wish this and the steppers had been available before, they would have made great Christmas presents 😀 Keep it up!
How do you get the flat ribbon to stay on the pcb, is it from the solder bridges?
When you solder the little tabs onto the PCB, there is indeed a solid connection that forms between the individual leads and the PCB pad itself. It’s perfectly solid and you’d have to pull pretty hard (and do some damage to the pads on the PCB) to get it off.