Open this page at https://devegied.github.io/pxt-max6958/

Digit Display (MAX6958)

makecode Digit Display (MAX6958) extension for micro:bit

LED Digit Display with 1-4 7-segment LED, it can show numbers. It has MAX6958 chip controled with a 2-wire interface.

Use as Extension

This repository can be added as an extension in MakeCode.

• open https://makecode.microbit.org/
• click on New Project
• click on Extensions under the gearwheel menu
• search for devegied/pxt-max6958 and import

Edit this project

To edit this repository in MakeCode.

• open https://makecode.microbit.org/
• click on Import then click on Import URL
• paste https://github.com/devegied/pxt-max6958 and click import

API

MAX6958=github:devegied/pxt-max6958

MAX6958.init(5, 4, MAX6958.ADDRESS.AA38, MAX6958.MAXDIG0On.Left)

Optionaly initialize the display controller by defining intensity, digit count, i2c address and position of Digit 0

• intensity - the brightness of the LED, eg: 5
• count - the count of digits, eg: 4
• address - the i2c bus address of driver, eg: 0x38
• maxDig0On - the position of MAX6958 Digit 0, eg: 0 (on the left)

MAX6958.on()

Turn on display

MAX6958.off()

Turn off display

MAX6958.clear()

Clear (and turn on) display

MAX6958.showLED(1, true)

Light on or off separate LEDs (not in segmented display)

• pos - the position of separate LED, eg: 1
• show - light on/off separate LED, eg: true

MAX6958.showDP(1, true)

Light on or off dot points next to the digits

• pos - the position of digit, eg: 1
• show - light on/off dot point, eg: true

MAX6958.showDigitAt(5, 1)

Show a digit at given position

• num - digit to be shown, eg: 5
• pos - the position of digit, eg: 1

MAX6958.lightSegmentsAt(0x7F, 1)

Light indicated segments at given position

• segments - segments to light on (as a sum of segement values), eg: 127 for all 7 segments
• pos - the position of digit, eg: 1

segments value can be calculated by adding segment values:

MAX6958.showInteger(1234)

Show a decimal integer number (between -999 and 9999 on four digits display)

• num - a number to show, eg: 1234

If value is to small (when negative) or to big display shows “-“ in all places

MAX6958.showHex(0xABCD)

Show a hexadecimal integer number (between -0x0FFF and 0xFFFF on four digits display)

• num - a number to show, eg: 0xABCD

If value is to small (when negative) or to big display shows “-“ in all places

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License

Licensed under the MIT License (MIT). See LICENSE file for more details.

Copyright (c) 2022, devegied

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