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+# m122-3270
+
+![IBM Model M 122 key](https://i.imgur.com/Oo3Ozqzh.jpg)
+
+This is a replacement controller for the IBM Model M 122 key terminal keyboard
+running on a STM32F411 BlackPill, intended to act as closely to the 3270
+keyboard's functioning as possible while still being usable on a PC.
+
+* Keyboard Maintainer: [Jay Maynard](https://github.com/jmaynard)
+* Hardware Supported: BlackPill STM32F411, Teensy++ 2.0
+* Hardware Availability: [BlackPill](https://www.adafruit.com/product/4877), [Teensy](https://www.pjrc.com/store/teensypp.html)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make ibm/model_m_122/m122_3270/blackpill:default
+ make ibm/model_m_122/m122_3270/bluepill:default
+ make ibm/model_m_122/m122_3270/teensy:default
+
+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).
+
+A schematic and Gerber files are publicly available for those wishing to have
+carrier boards made professionally instead of handwiring things. The M122
+matrix connectors plug right into it. It can be found at
+https://github.com/jmaynard/tronguylabs-m122-blackpill.
+
+This is derived from Luke Stanley's handwired/ibm122m keyboard, with my own
+keymapping and rework of the I/O for the BlackPill. There's also a version for
+the Teensy++ 2.0, since that was my original design and I still use one on one
+board, even though I switched to the BlackPill for future-proofing.
+The Teensy++ 2.0 is not recommended for new designs.