# Custom mapping for the Drop Alt Keyboard.
A really simple set of changes/fixes
# Features and changes:
## *ESC is now Grave Escape.*
Changes KC_ESC for grave escape - Escape key is also `/~ when used with the modifier key.
## *RGB timer switch off*
There is a timer that turns off RGB lighting after a set time. This is defined by
#define IDLE_TIMER_DURATION 20000 //how many milliseconds before RGB turns off
## *Keyboard chatter fix*
I have left the debounce settings and instead changed
wait_us(1); //Delay for output
to 40 instead of 1 which works for other keyboards as I was getting lots of keyboard chatter on all keys previously. 20 seemed to still let key chatter go through. Seems to be working well since.
# ALT
The Massdrop ALT is a 65% mechanical keyboard featuring dual USB-C connectors, an integrated Hi-Speed USB 2.0 hub, and fully customizable RGB backlighting and underlighting.
Keyboard Maintainer: [Massdrop](https://github.com/massdrop)
Hardware Supported: Massdrop, Inc. ALT PCBs utilizing Microchip's ATSAMD51J18A MCU and USB2422 2-Port USB 2.0 Hi-Speed Hub Controller, and ISSI's IS31FL3733 LED Drivers.
Hardware Availability: [Massdrop ALT Mechanical Keyboard](https://www.massdrop.com/buy/massdrop-alt-mechanical-keyboard)
Make example for this keyboard (after setting up your build environment):
make massdrop/alt:default
For information on flashing this keyboard, visit the following links:
[Massdrop Loader Releases](https://github.com/Massdrop/mdloader/releases)
[Massdrop Loader Repository and Instructions](https://github.com/Massdrop/mdloader)
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).