From 6cff13623f93880e4cd5537a406b77f69bf8cbe5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?U=C4=9Fur=20ALTINSOY?=
 <48494791+uguraltinsoy@users.noreply.github.com>
Date: Sat, 24 Jan 2026 17:38:07 +0300
Subject: [PATCH] Added Minimesh variant (#9289)

* Minimesh Lite Added

* Add Minimesh Lite NRF

* Added board_level = extra

* Fix formatting and optimize image for Minimesh Lite

* Change image

* The image has been deleted.

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
---
 boards/minimesh_lite.json                     |  50 +++++++++
 .../nrf52840/dls_Minimesh_Lite/platformio.ini |   9 ++
 .../nrf52840/dls_Minimesh_Lite/variant.cpp    |  38 +++++++
 variants/nrf52840/dls_Minimesh_Lite/variant.h | 104 ++++++++++++++++++
 4 files changed, 201 insertions(+)
 create mode 100644 boards/minimesh_lite.json
 create mode 100644 variants/nrf52840/dls_Minimesh_Lite/platformio.ini
 create mode 100644 variants/nrf52840/dls_Minimesh_Lite/variant.cpp
 create mode 100644 variants/nrf52840/dls_Minimesh_Lite/variant.h

diff --git a/boards/minimesh_lite.json b/boards/minimesh_lite.json
new file mode 100644
index 000000000..0b8f0b909
--- /dev/null
+++ b/boards/minimesh_lite.json
@@ -0,0 +1,50 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "nrf52840_s140_v6.ld"
+    },
+    "core": "nRF5",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DMINIMESH_LITE -DNRF52840_XXAA",
+    "f_cpu": "64000000L",
+    "hwids": [
+      ["0x239A", "0x8029"],
+      ["0x239A", "0x0029"],
+      ["0x239A", "0x002A"]
+    ],
+    "usb_product": "Minimesh Lite",
+    "mcu": "nrf52840",
+    "variant": "dls_Minimesh_Lite",
+    "bsp": {
+      "name": "adafruit"
+    },
+    "softdevice": {
+      "sd_flags": "-DS140",
+      "sd_name": "s140",
+      "sd_version": "6.1.1",
+      "sd_fwid": "0x00B6"
+    },
+    "bootloader": {
+      "settings_addr": "0xFF000"
+    }
+  },
+  "connectivity": ["bluetooth"],
+  "debug": {
+    "jlink_device": "nRF52840_xxAA",
+    "svd_path": "nrf52840.svd"
+  },
+  "frameworks": ["arduino"],
+  "name": "Minimesh Lite",
+  "upload": {
+    "maximum_ram_size": 248832,
+    "maximum_size": 815104,
+    "speed": 115200,
+    "protocol": "nrfutil",
+    "protocols": ["nrfutil", "jlink", "nrfjprog", "stlink"],
+    "use_1200bps_touch": true,
+    "require_upload_port": true,
+    "wait_for_upload_port": true
+  },
+  "url": "https://deeplabstudio.com",
+  "vendor": "Deeplab Studio"
+}
diff --git a/variants/nrf52840/dls_Minimesh_Lite/platformio.ini b/variants/nrf52840/dls_Minimesh_Lite/platformio.ini
new file mode 100644
index 000000000..763ff5477
--- /dev/null
+++ b/variants/nrf52840/dls_Minimesh_Lite/platformio.ini
@@ -0,0 +1,9 @@
+[env:minimesh_lite]
+extends = nrf52840_base
+board = minimesh_lite
+board_level = extra
+build_flags = ${nrf52840_base.build_flags}
+  -Ivariants/nrf52840/dls_Minimesh_Lite
+  -DPRIVATE_HW
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/dls_Minimesh_Lite>
+debug_tool = jlink
diff --git a/variants/nrf52840/dls_Minimesh_Lite/variant.cpp b/variants/nrf52840/dls_Minimesh_Lite/variant.cpp
new file mode 100644
index 000000000..5869ed1d4
--- /dev/null
+++ b/variants/nrf52840/dls_Minimesh_Lite/variant.cpp
@@ -0,0 +1,38 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+  Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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 Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "nrf.h"
+#include "wiring_constants.h"
+#include "wiring_digital.h"
+
+const uint32_t g_ADigitalPinMap[] = {
+    // P0
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+
+    // P1
+    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
+
+void initVariant()
+{
+    // 3V3 Power Rail
+    pinMode(PIN_3V3_EN, OUTPUT);
+    digitalWrite(PIN_3V3_EN, HIGH);
+}
diff --git a/variants/nrf52840/dls_Minimesh_Lite/variant.h b/variants/nrf52840/dls_Minimesh_Lite/variant.h
new file mode 100644
index 000000000..f5163619b
--- /dev/null
+++ b/variants/nrf52840/dls_Minimesh_Lite/variant.h
@@ -0,0 +1,104 @@
+#ifndef _VARIANT_MINIMESH_LITE_
+#define _VARIANT_MINIMESH_LITE_
+
+#define VARIANT_MCK (64000000ul)
+#define USE_LFRC
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MINIMESH_LITE
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+#define PIN_3V3_EN (0 + 13) // P0.13
+
+// Analog pins
+#define BATTERY_PIN (0 + 31) // P0.31 Battery ADC
+#define ADC_CHANNEL ADC1_GPIO4_CHANNEL
+#define ADC_RESOLUTION 14
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+#define BATTERY_SENSE_RESOLUTION 4096.0
+#define VBAT_MV_PER_LSB (0.73242188F)
+#define VBAT_DIVIDER (0.6F)
+#define VBAT_DIVIDER_COMP (1.73)
+#define REAL_VBAT_MV_PER_LSB (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
+#undef AREF_VOLTAGE
+#define AREF_VOLTAGE 3.0
+#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
+#define ADC_MULTIPLIER VBAT_DIVIDER_COMP
+#define VBAT_RAW_TO_SCALED(x) (REAL_VBAT_MV_PER_LSB * x)
+
+// WIRE IC AND IIC PINS
+#define WIRE_INTERFACES_COUNT 1
+
+#define PIN_WIRE_SDA (32 + 4)
+#define PIN_WIRE_SCL (0 + 11)
+
+// LED
+#define PIN_LED1 (0 + 15)
+#define LED_BUILTIN PIN_LED1
+// Actually red
+#define LED_BLUE PIN_LED1
+#define LED_STATE_ON 1
+
+// Button
+#define BUTTON_PIN (32 + 0)
+
+// GPS
+#define GPS_TX_PIN (0 + 20)
+#define GPS_RX_PIN (0 + 22)
+
+#define PIN_GPS_EN (0 + 24)
+#define GPS_UBLOX
+// define GPS_DEBUG
+
+// UART interfaces
+#define PIN_SERIAL1_TX GPS_TX_PIN
+#define PIN_SERIAL1_RX GPS_RX_PIN
+
+#define PIN_SERIAL2_RX (0 + 6)
+#define PIN_SERIAL2_TX (0 + 8)
+
+// Serial interfaces
+#define SPI_INTERFACES_COUNT 1
+
+#define PIN_SPI_MISO (0 + 2)
+#define PIN_SPI_MOSI (32 + 15)
+#define PIN_SPI_SCK (32 + 11)
+
+#define LORA_MISO PIN_SPI_MISO
+#define LORA_MOSI PIN_SPI_MOSI
+#define LORA_SCK PIN_SPI_SCK
+#define LORA_CS (32 + 13)
+
+// LORA MODULES
+#define USE_LLCC68
+#define USE_SX1262
+#define USE_SX1268
+
+// SX126X CONFIG
+#define SX126X_CS (32 + 13)
+#define SX126X_DIO1 (0 + 10)
+#define SX126X_DIO2_AS_RF_SWITCH
+
+#define SX126X_BUSY (0 + 29)
+#define SX126X_RESET (0 + 9)
+#define SX126X_RXEN (0 + 17)
+#define SX126X_TXEN RADIOLIB_NC
+
+#define SX126X_DIO3_TCXO_VOLTAGE 1.8
+#define TCXO_OPTIONAL // make it so that the firmware can try both TCXO and XTAL
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _VARIANT_MINIMESH_LITE_