hivescale-feather.overlay

/*
 * Copyright (c) 2023 Achim Kraus CloudCoap.net
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http: //www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 */

/*
 * Usage:
 *
 * west build -d build_feather_nrf9160_ns -b circuitdojo_feather_nrf9160_ns --pristine -- \
 *    -DOVERLAY_CONFIG="60min0-prj.conf;at-cmd-prj.conf;hivescale-prj.conf" \
 *    -DDTC_OVERLAY_FILE="hivescale-feather.overlay" -DCONFIG_BATTERY_TYPE_ENELOOP_2000_MAH=y
 */

#include "boards/circuitdojo_feather_nrf9160_ns.overlay"


&pinctrl {

	i2c2_default: i2c2_default {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 1)>,
					<NRF_PSEL(TWIM_SCL, 0, 2)>;
			// This I/Os have no pull-ups on the feather.
			// The pull-ups on the ADC/NAU board 
			// are too weak for longer lines.
			bias-pull-up;
		};
	};

	i2c2_sleep: i2c2_sleep {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 0, 1)>,
					<NRF_PSEL(TWIM_SCL, 0, 2)>;
			low-power-enable;
		};
	};
};

&i2c1 {

	clock-frequency = <I2C_BITRATE_STANDARD>;

	eeprom_a: eeprom@50 {
		/* AT24HC04B (4 kbit eeprom 512x8 bit) */
		/* NOTE: the 9th address bit collides with the 0x51 of the feather clock chip. */
		compatible = "atmel,at24";
		reg = <0x50>;
		size = <512>;
		pagesize = <16>;
		address-width = <8>;
		timeout = <5>;
	};

	scale_a: scale@2a {
		compatible = "nau7802-scale";
		reg = <0x2a>;
		avref_mv = <3000>;
		gain = <64>;
		calibration_storage = <&eeprom_a>;
	};

};

&i2c2 {
	compatible = "nordic,nrf-twim";
	status = "okay";
	pinctrl-0 = <&i2c2_default>;
	pinctrl-1 = <&i2c2_sleep>;
	pinctrl-names = "default", "sleep";
	clock-frequency = <I2C_BITRATE_STANDARD>;

	eeprom_b: eeprom@50 {
		/* AT24HC04B (4 kbit eeprom 512x8 bit) */
		compatible = "atmel,at24";
		reg = <0x50>;
		size = <512>;
		pagesize = <16>;
		address-width = <8>;
		timeout = <5>;
	};

	scale_b: scale@2a {
		compatible = "nau7802-scale";
		reg = <0x2a>;
		avref_mv = <3000>;
		gain = <64>;
		calibration_storage = <&eeprom_b>;
	};

};

/    {

	leds {

		red_led_ext: led_1 {
			gpios = <&gpio0 19 GPIO_ACTIVE_LOW>;
		};
		green_led_ext: led_2 {
			gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
		};
		blue_led_ext: led_3 {
			gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
		};

	};

	buttons {
		compatible = "gpio-keys";
		button1: button_1 {
			gpios = <&gpio0 17 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
		};
	};


	aliases {
		led0 = &red_led_ext;
		led1 = &green_led_ext;
		led2 = &blue_led_ext;

		sw0 = &button1;

		scale-a = &scale_a;
		scale-b = &scale_b;
	};

};