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diff --git a/digital/avr/modules/motor/encoder/ext/avrconfig.h b/digital/avr/modules/motor/encoder/ext/avrconfig.h
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+#ifndef avrconfig_h
+#define avrconfig_h
+/* avrconfig.h - motor/encoder/ext configuration template. */
+/* motor - Motor control module. {{{
+ *
+ * Copyright (C) 2010 Nicolas Schodet
+ *
+ * APBTeam:
+ * Web: http://apbteam.org/
+ * Email: team AT apbteam DOT org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+
+/* motor/encoder/ext - External encoder module. */
+/** Number of encoders. */
+#define AC_ENCODER_EXT_NB 4
+/** Use external memory hardware interface. */
+#define AC_ENCODER_EXT_USE_XMEM 0
+/** If not using XMEM, address/data bus, see io_bus.h. */
+#define AC_ENCODER_EXT_AD_BUS A, 8, 0
+/** If not using XMEM, address latch enable IO. */
+#define AC_ENCODER_EXT_ALE_IO B, 0
+/** If not using XMEM, read enable IO, valid low. */
+#define AC_ENCODER_EXT_RD_IO B, 1
+/** If not using XMEM and write available, write enable IO, valid low. */
+#define AC_ENCODER_EXT_WR_IO B, 2
+/** Reverse flag for each encoder (1 to reverse direction). */
+#define AC_ENCODER_EXT_REVERSE 0, 0, 0, 0
+/** Right shift for all encoders to lower resolution. */
+#define AC_ENCODER_EXT_SHIFT 0
+/** For debug purpose only! */
+#define AC_ENCODER_EXT_EXPORT_READ 0
+
+#endif /* avrconfig_h */