diff --git a/adafruit_seesaw/robohat.py b/adafruit_seesaw/robohat.py
new file mode 100644
index 0000000..6cf3cc3
--- /dev/null
+++ b/adafruit_seesaw/robohat.py
@@ -0,0 +1,94 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2019 wallarug for Robotics Masters
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+# pylint: disable=missing-docstring,invalid-name,too-many-public-methods,too-few-public-methods
+
+from micropython import const
+
+__version__ = "0.0.0-auto.0"
+__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_seesaw.git"
+
+# Robo HAT MM1 Board: https://www.crowdsupply.com/robotics-masters/robo-hat-mm1
+
+# The ordering here reflects the seesaw firmware (mm1_hat) pinmap for Robo HAT MM1,
+# not logical ordering of the HAT terminals.
+
+_MM1_D0 = const(55) # (RX to RPI_TX)
+_MM1_D1 = const(54) # (TX to RPI_RX)
+_MM1_D2 = const(34) # ADC (GPS_TX)
+_MM1_D3 = const(35) # ADC (GPS_RX)
+_MM1_D4 = const(0) # (GPS_SDA)
+_MM1_D5 = const(1) # (GPS_SCL)
+_MM1_D6 = const(28) # (POWER_ENABLE)
+_MM1_D7 = const(2) # (BATTERY)
+_MM1_D8 = const(20) # (NEOPIXEL)
+_MM1_D9 = const(43) # PWM (SPI_SCK)
+_MM1_D10 = const(41) # PWM (SPI_SS)
+_MM1_D11 = const(42) # PWM (SPI_MOSI)
+_MM1_D12 = const(40) # PWM (SPI_MISO)
+_MM1_D13 = const(21) # LED
+_MM1_D14 = const(3)  # (POWER_OFF)
+
+_MM1_SERVO8 = const(8)
+_MM1_SERVO7 = const(9)
+_MM1_SERVO6 = const(10)
+_MM1_SERVO5 = const(11)
+_MM1_SERVO4 = const(19)
+_MM1_SERVO3 = const(18)
+_MM1_SERVO2 = const(17)
+_MM1_SERVO1 = const(16)
+
+_MM1_RCH1 = const(7)
+_MM1_RCH2 = const(6)
+_MM1_RCH3 = const(5)
+_MM1_RCH4 = const(4)
+
+
+# seesaw firmware has indexed lists of pins by function.
+# These "pin" numbers map to real PAxx, PBxx pins on the board implementing seesaaw
+# They may or may not match.
+# See seesaw/include/SeesawConfig.h and seesaw/boards/robohatmm1/board_config.h for the pin choices.
+
+# You must look at both files and combine the defaults in SeesawConfig.h with the
+# overrides in robohatmm1/board_config.h.
+# PA<nn> pins are nn
+# PB<nn> pins are 32+nn
+
+class MM1_Pinmap:
+    # seesaw firmware (mm1_hat) analog pin map:
+    # analog[0]:47    analog[1]:48    analog[2]:     analog[3]:
+    # analog[4]:    analog[5]:    analog[6]:    analog[7]:
+    #
+    analog_pins = (_MM1_D3, _MM1_D2)
+
+    pwm_width = 16
+
+    # seesaw firmware (mm1_hat) pwm pin map:
+    # pwm[0]:16   pwm[1]:17    pwm[2]:18    pwm[3]:19    pwm[4]:11    pwm[5]:10
+    # pwm[6]:9    pwm[7]:8    pwm[8]:40    pwm[9]:41    pwm[10]:42   pwm[11]:43
+    #
+    pwm_pins = (_MM1_SERVO1, _MM1_SERVO2, _MM1_SERVO3, _MM1_SERVO4,
+                _MM1_SERVO5, _MM1_SERVO6, _MM1_SERVO7, _MM1_SERVO8,
+                _MM1_D12, _MM1_D10, _MM1_D11, _MM1_D9)
+
+    # seesaw firmware touch pin map:
+    # touch[0]: 7    touch[1]: 6    touch[2]: 5    touch[3]: 4
+    touch_pins = (_MM1_RCH1, _MM1_RCH2, _MM1_RCH3, _MM1_RCH4)
diff --git a/adafruit_seesaw/seesaw.py b/adafruit_seesaw/seesaw.py
index 2af8325..afdaf19 100644
--- a/adafruit_seesaw/seesaw.py
+++ b/adafruit_seesaw/seesaw.py
@@ -121,6 +121,7 @@
 
 #TODO: update when we get real PID
 _CRICKIT_PID = const(9999)
+_ROBOHATMM1_PID = const(9998)
 
 class Seesaw:
     """Driver for Seesaw i2c generic conversion trip
@@ -156,6 +157,9 @@ def sw_reset(self):
         if pid == _CRICKIT_PID:
             from adafruit_seesaw.crickit import Crickit_Pinmap
             self.pin_mapping = Crickit_Pinmap
+        elif pid == _ROBOHATMM1_PID:
+            from adafruit_seesaw.robohat import MM1_Pinmap
+            self.pin_mapping = MM1_Pinmap
         else:
             from adafruit_seesaw.samd09 import SAMD09_Pinmap
             self.pin_mapping = SAMD09_Pinmap