From f058b0f267ec869908b141cb550c8dc2f55032ed Mon Sep 17 00:00:00 2001
From: David Antliff <david@pitchblende.co.nz>
Date: Fri, 1 Sep 2017 16:47:21 +1200
Subject: [PATCH] Reduce conversion resolution to 11 bits. Update for ESP-IDF
 v2.1.

---
 main/ds18b20_main.c |  5 ++--
 main/owb.c          |  1 +
 sdkconfig           | 58 ++++-----------------------------------------
 3 files changed, 7 insertions(+), 57 deletions(-)

diff --git a/main/ds18b20_main.c b/main/ds18b20_main.c
index 892e5ef..95224bc 100644
--- a/main/ds18b20_main.c
+++ b/main/ds18b20_main.c
@@ -38,8 +38,7 @@
 
 #define GPIO_DS18B20_0       (GPIO_NUM_5)
 #define MAX_DEVICES          (8)
-#define DS18B20_RESOLUTION   (DS18B20_RESOLUTION_12_BIT)
-
+#define DS18B20_RESOLUTION   (DS18B20_RESOLUTION_11_BIT)
 
 void app_main()
 {
@@ -157,7 +156,7 @@ void app_main()
             printf("\nTemperature readings (degrees C):\n");
             for (int i = 0; i < num_devices; ++i)
             {
-                printf("  %d: %.3f\n", i, temps[i]);
+                printf("  %d: %.1f\n", i, temps[i]);
             }
 
             // make up delay to approximately 1 second per measurement
diff --git a/main/owb.c b/main/owb.c
index e174805..aa00e98 100644
--- a/main/owb.c
+++ b/main/owb.c
@@ -30,6 +30,7 @@
 #include <stdbool.h>
 #include <inttypes.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "esp_log.h"
 #include "sdkconfig.h"
diff --git a/sdkconfig b/sdkconfig
index 8b7e1ce..905e617 100644
--- a/sdkconfig
+++ b/sdkconfig
@@ -19,7 +19,6 @@ CONFIG_LOG_BOOTLOADER_LEVEL_INFO=y
 # CONFIG_LOG_BOOTLOADER_LEVEL_DEBUG is not set
 # CONFIG_LOG_BOOTLOADER_LEVEL_VERBOSE is not set
 CONFIG_LOG_BOOTLOADER_LEVEL=3
-# CONFIG_BOOTLOADER_LTO is not set
 
 #
 # Security features
@@ -82,30 +81,12 @@ CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_CUSTOM_APP_BIN_OFFSET=0x10000
 CONFIG_PARTITION_TABLE_FILENAME="partitions_singleapp.csv"
 CONFIG_APP_OFFSET=0x10000
-
-#
-# Compiler options
-#
 CONFIG_OPTIMIZATION_LEVEL_DEBUG=y
 # CONFIG_OPTIMIZATION_LEVEL_RELEASE is not set
-CONFIG_OPTIMIZATION_ASSERTIONS_ENABLED=y
-# CONFIG_OPTIMIZATION_ASSERTIONS_SILENT is not set
-# CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED is not set
 
 #
 # Component config
 #
-
-#
-# Application Level Tracing
-#
-# CONFIG_ESP32_APPTRACE_DEST_TRAX is not set
-CONFIG_ESP32_APPTRACE_DEST_NONE=y
-# CONFIG_ESP32_APPTRACE_ENABLE is not set
-
-#
-# FreeRTOS SystemView Tracing
-#
 # CONFIG_AWS_IOT_SDK is not set
 # CONFIG_BT_ENABLED is not set
 CONFIG_BT_RESERVE_DRAM=0
@@ -126,6 +107,10 @@ CONFIG_TRACEMEM_RESERVE_DRAM=0x0
 # CONFIG_ESP32_ENABLE_COREDUMP_TO_UART is not set
 CONFIG_ESP32_ENABLE_COREDUMP_TO_NONE=y
 # CONFIG_ESP32_ENABLE_COREDUMP is not set
+# CONFIG_ESP32_APPTRACE_DEST_TRAX is not set
+# CONFIG_ESP32_APPTRACE_DEST_UART is not set
+CONFIG_ESP32_APPTRACE_DEST_NONE=y
+# CONFIG_ESP32_APPTRACE_ENABLE is not set
 # CONFIG_TWO_UNIVERSAL_MAC_ADDRESS is not set
 CONFIG_FOUR_UNIVERSAL_MAC_ADDRESS=y
 CONFIG_NUMBER_OF_UNIVERSAL_MAC_ADDRESS=4
@@ -155,16 +140,6 @@ CONFIG_TASK_WDT=y
 CONFIG_TASK_WDT_TIMEOUT_S=5
 CONFIG_TASK_WDT_CHECK_IDLE_TASK=y
 CONFIG_TASK_WDT_CHECK_IDLE_TASK_CPU1=y
-CONFIG_BROWNOUT_DET=y
-CONFIG_BROWNOUT_DET_LVL_SEL_0=y
-# CONFIG_BROWNOUT_DET_LVL_SEL_1 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_2 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_3 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_4 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_5 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_6 is not set
-# CONFIG_BROWNOUT_DET_LVL_SEL_7 is not set
-CONFIG_BROWNOUT_DET_LVL=0
 # CONFIG_ESP32_TIME_SYSCALL_USE_RTC is not set
 CONFIG_ESP32_TIME_SYSCALL_USE_RTC_FRC1=y
 # CONFIG_ESP32_TIME_SYSCALL_USE_FRC1 is not set
@@ -185,8 +160,6 @@ CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER=y
 CONFIG_ESP32_WIFI_TX_BUFFER_TYPE=1
 CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM=32
 CONFIG_ESP32_WIFI_AMPDU_ENABLED=y
-CONFIG_ESP32_WIFI_TX_BA_WIN=6
-CONFIG_ESP32_WIFI_RX_BA_WIN=6
 CONFIG_ESP32_WIFI_NVS_ENABLED=y
 CONFIG_PHY_ENABLED=y
 
@@ -278,35 +251,12 @@ CONFIG_LWIP_THREAD_LOCAL_STORAGE_INDEX=0
 CONFIG_LWIP_DHCP_MAX_NTP_SERVERS=1
 # CONFIG_LWIP_IP_FRAG is not set
 # CONFIG_LWIP_IP_REASSEMBLY is not set
-
-#
-# TCP
-#
 CONFIG_TCP_MAXRTX=12
 CONFIG_TCP_SYNMAXRTX=6
-CONFIG_TCP_MSS=1436
-CONFIG_TCP_SND_BUF_DEFAULT=5744
-CONFIG_TCP_WND_DEFAULT=5744
-CONFIG_TCP_RECVMBOX_SIZE=6
-CONFIG_TCP_QUEUE_OOSEQ=y
-CONFIG_TCP_OVERSIZE_MSS=y
-# CONFIG_TCP_OVERSIZE_QUARTER_MSS is not set
-# CONFIG_TCP_OVERSIZE_DISABLE is not set
-
-#
-# UDP
-#
-CONFIG_UDP_RECVMBOX_SIZE=6
 CONFIG_LWIP_DHCP_DOES_ARP_CHECK=y
 CONFIG_TCPIP_TASK_STACK_SIZE=2560
 # CONFIG_PPP_SUPPORT is not set
 
-#
-# ICMP
-#
-# CONFIG_LWIP_MULTICAST_PING is not set
-# CONFIG_LWIP_BROADCAST_PING is not set
-
 #
 # mbedTLS
 #