If you are planning to make your own PCBs, using toner transfer or UV exposure methods, you will need the layout image and maybe the silkscreen. With a little script file this can be done in a few seconds in Eagle.
Tuesday, April 24, 2018
Tuesday, March 27, 2018
LC75824 LCD driver chip library for EFM8 microcontrollers
LC75824 is an LCD driver chip. It has 4 commons so it has 1/4 duty and supports 1/2 and 1/3 bias voltages. In addition to being able to directly drive up to 204 LCD segments, the LC75824E and LC75824W can also control up to 12 general-purpose output ports. Serial data input supports CCB format communication with the system controller.
The interface between the LCD driver and the microcontroller is done by using only 3 pins (CLK, CE and DATA).
I know this is an old and rare LCD driver but the library code can be used to adapt other LCD drivers. I use this because I have a broken Samsung MM-N7 audio system with a good display using this IC.
The interface between the LCD driver and the microcontroller is done by using only 3 pins (CLK, CE and DATA).
I know this is an old and rare LCD driver but the library code can be used to adapt other LCD drivers. I use this because I have a broken Samsung MM-N7 audio system with a good display using this IC.
LC75824 pinout |
Sunday, March 4, 2018
UART library for EFM8BB1 Busy Bee microcontrollers
This UART library is made for EFM8 microcontrollers. It uses circular buffers for transmission and reception of data. This way large amounts of data can be sent or received with only 5 or 10 bytes per buffer, thus saving memory.
Uses 8 data bits, 1 stop bit, no parity. Supported baud rates: 9600, 14400, 19200, 38400, 57600, 115200, 128000, 256000.
On EFM8BB10F8G-A device, the UART pins are on port 0 and pin 4 is TX and pin 5 is used for RX.
Saturday, March 3, 2018
Eagle CAD Quick Tip | How to remove unwanted copper pour
Beautify your PCB with this quick tip. A short video on how to remove unwanted copper pour around some traces in Eagle CAD without increasing the clearance between tracks.
Friday, March 2, 2018
Cheap and powerful 50 cents microcontroller | EFM8 Family
This is a step-by-step tutorial on how to setup and program an
EFM8BB10F8G-A microcontroller or any other EFM8 Busy Bee microcontroller family
from Silicon Labs. It is assumed that the reader knows the C programming language and basics about microcontrollers.
Why
would you want to learn to use
another microcontroller when there are many tutorials and libraries on
popular MCU's such as AVR and PIC? Well, because they are much more
cheaper but performant nonetheless - on Farnell you can buy them for
less than 50 cents - and also are pre-programed with a bootloader making
easy to program them using any USB to serial converter. Compare that
to Attiny13A which is around the same price but with half the pin count,
less speed and peripherals. Just see the features bellow.
Labels:
Microcontroller SiLabs,
Simplicity Studio
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