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diff --git a/shared-bindings/displayio/ParallelBus.c b/shared-bindings/displayio/ParallelBus.c
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+++ b/shared-bindings/displayio/ParallelBus.c
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Scott Shawcroft for Adafruit Industries
+ *
+ * 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 "shared-bindings/displayio/ParallelBus.h"
+
+#include <stdint.h>
+
+#include "lib/utils/context_manager_helpers.h"
+#include "py/binary.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/util.h"
+#include "shared-module/displayio/__init__.h"
+#include "supervisor/shared/translate.h"
+
+//| .. currentmodule:: displayio
+//|
+//| :class:`ParallelBus` -- Manage updating a display over SPI four wire protocol
+//| ==============================================================================
+//|
+//| Manage updating a display over SPI four wire protocol in the background while Python code runs.
+//| It doesn't handle display initialization.
+//|
+//| .. warning:: This will be changed before 4.0.0. Consider it very experimental.
+//|
+//| .. class:: ParallelBus(*, data0, command, chip_select, write, read, reset)
+//|
+//|   Create a ParallelBus object associated with the given pins. The bus is inferred from data0
+//|   by implying the next 7 additional pins on a given GPIO port.
+//|
+//|   :param microcontroller.Pin: The first data pin. The rest are implied
+//|   :param microcontroller.Pin command: Data or command pin
+//|   :param microcontroller.Pin chip_select: Chip select pin
+//|   :param microcontroller.Pin write: Write pin
+//|   :param microcontroller.Pin read: Read pin
+//|   :param microcontroller.Pin reset: Reset pin
+//|
+STATIC mp_obj_t displayio_parallelbus_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_data0, ARG_command, ARG_chip_select, ARG_write, ARG_read, ARG_reset };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_data0, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
+        { MP_QSTR_command, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
+        { MP_QSTR_chip_select, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
+        { MP_QSTR_write, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
+        { MP_QSTR_read, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
+        { MP_QSTR_reset, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    mp_obj_t data0 = args[ARG_data0].u_obj;
+    mp_obj_t command = args[ARG_command].u_obj;
+    mp_obj_t chip_select = args[ARG_chip_select].u_obj;
+    mp_obj_t write = args[ARG_write].u_obj;
+    mp_obj_t read = args[ARG_read].u_obj;
+    mp_obj_t reset = args[ARG_reset].u_obj;
+    assert_pin_free(data0);
+    assert_pin_free(command);
+    assert_pin_free(chip_select);
+    assert_pin_free(write);
+    assert_pin_free(read);
+    assert_pin_free(reset);
+
+    displayio_parallelbus_obj_t* self = NULL;
+    for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
+        if (displays[i].parallel_bus.base.type== NULL ||
+            displays[i].parallel_bus.base.type == &mp_type_NoneType) {
+            self = &displays[i].parallel_bus;
+            self->base.type = &displayio_parallelbus_type;
+            break;
+        }
+    }
+    if (self == NULL) {
+        mp_raise_RuntimeError(translate("Too many display busses"));
+    }
+
+    common_hal_displayio_parallelbus_construct(self, data0, command, chip_select, write, read, reset);
+    return self;
+}
+
+
+//|   .. method:: send(command, data)
+//|
+//|
+STATIC mp_obj_t displayio_parallelbus_obj_send(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    mp_raise_NotImplementedError(translate("displayio is a work in progress"));
+
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_KW(displayio_parallelbus_send_obj, 1, displayio_parallelbus_obj_send);
+
+STATIC const mp_rom_map_elem_t displayio_parallelbus_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_send), MP_ROM_PTR(&displayio_parallelbus_send_obj) },
+};
+STATIC MP_DEFINE_CONST_DICT(displayio_parallelbus_locals_dict, displayio_parallelbus_locals_dict_table);
+
+const mp_obj_type_t displayio_parallelbus_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_ParallelBus,
+    .make_new = displayio_parallelbus_make_new,
+    .locals_dict = (mp_obj_dict_t*)&displayio_parallelbus_locals_dict,
+};