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diff --git a/shared-bindings/analogio/AnalogOut.c b/shared-bindings/analogio/AnalogOut.c
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * 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.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "lib/utils/context_manager_helpers.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/analogio/AnalogOut.h"
+
+//| .. currentmodule:: analogio
+//|
+//| :class:`AnalogOut` -- output analog voltage
+//| ============================================
+//|
+//| The AnalogOut is used to output analog values (a specific voltage).
+//|
+//| Example usage::
+//|
+//|     import analogio
+//|     from microcontroller import pin
+//|
+//|     with analogio.AnalogOut(pin.PA02) as dac:     # output on pin PA02
+//|       dac.value = 32768                           # makes PA02 1.65V
+//|
+
+//| .. class:: AnalogOut(pin)
+//|
+//|   Use the AnalogOut on the given pin.
+//|
+//|   :param ~microcontroller.Pin pin: the pin to output to
+//|
+STATIC mp_obj_t analogio_analogout_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    // check arguments
+    mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
+
+    assert_pin(args[0], false);
+    const mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(args[0]);
+
+    analogio_analogout_obj_t *self = m_new_obj(analogio_analogout_obj_t);
+    self->base.type = &analogio_analogout_type;
+    assert_pin_free(pin);
+    common_hal_analogio_analogout_construct(self, pin);
+
+    return self;
+}
+
+//|   .. method:: deinit()
+//|
+//|     Turn off the AnalogOut and release the pin for other use.
+//|
+STATIC mp_obj_t analogio_analogout_deinit(mp_obj_t self_in) {
+    analogio_analogout_obj_t *self = self_in;
+
+    common_hal_analogio_analogout_deinit(self);
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(analogio_analogout_deinit_obj, analogio_analogout_deinit);
+
+//|   .. method:: __enter__()
+//|
+//|      No-op used by Context Managers.
+//|
+//  Provided by context manager helper.
+
+//|   .. method:: __exit__()
+//|
+//|      Automatically deinitializes the hardware when exiting a context.
+//|
+STATIC mp_obj_t analogio_analogout___exit__(size_t n_args, const mp_obj_t *args) {
+    (void)n_args;
+    common_hal_analogio_analogout_deinit(args[0]);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(analogio_analogout___exit___obj, 4, 4, analogio_analogout___exit__);
+
+//|   .. attribute:: value
+//|
+//|     The value on the analog pin.  The value must be between 0 and 65535
+//|     inclusive (16-bit). Even if the underlying digital to analog converter
+//|     is lower resolution, the input must be scaled to be 16-bit.
+//|
+//|     :return: the last value written
+//|     :rtype: int
+//|
+STATIC mp_obj_t analogio_analogout_obj_set_value(mp_obj_t self_in, mp_obj_t value) {
+   analogio_analogout_obj_t *self = MP_OBJ_TO_PTR(self_in);
+   uint32_t v = mp_obj_get_int(value);
+   if (v >= (1 << 16)) {
+       mp_raise_ValueError("AnalogOut is only 16 bits. Value must be less than 65536.");
+   }
+   common_hal_analogio_analogout_set_value(self, v);
+   return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(analogio_analogout_set_value_obj, analogio_analogout_obj_set_value);
+
+const mp_obj_property_t analogio_analogout_value_obj = {
+    .base.type = &mp_type_property,
+    .proxy = {(mp_obj_t)&mp_const_none_obj,
+              (mp_obj_t)&analogio_analogout_set_value_obj,
+              (mp_obj_t)&mp_const_none_obj},
+};
+
+STATIC const mp_rom_map_elem_t analogio_analogout_locals_dict_table[] = {
+    // instance methods
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&analogio_analogout_deinit_obj) },
+    { MP_ROM_QSTR(MP_QSTR___enter__),  MP_ROM_PTR(&default___enter___obj) },
+    { MP_ROM_QSTR(MP_QSTR___exit__),   MP_ROM_PTR(&analogio_analogout___exit___obj) },
+
+    // Properties
+    { MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&analogio_analogout_value_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(analogio_analogout_locals_dict, analogio_analogout_locals_dict_table);
+
+const mp_obj_type_t analogio_analogout_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_AnalogOut,
+    .make_new = analogio_analogout_make_new,
+    .locals_dict = (mp_obj_t)&analogio_analogout_locals_dict,
+};