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Merge pull request #1 from foogod/hetii-ds18b20

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A couple of fixups prior to merging into main project
This commit is contained in:
hetii 2016-02-23 10:20:23 +01:00
commit c1aa8f2e73
9 changed files with 37 additions and 88 deletions
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22
examples/ds18b20_broadcaster/LICENSE
View file

@ -1,22 +0,0 @@
The MIT License (MIT)
Copyright (c) 2016 Grzegorz Hetman : ghetman@gmail.com
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.

6
examples/ds18b20_broadcaster/ds18b20_broadcaster.c
View file

@ -58,7 +58,7 @@ void broadcast_temperature(void *pvParameters)
for(;;) { for(;;) {
// Search all DS18B20, return its amount and feed 't' structure with result data. // Search all DS18B20, return its amount and feed 't' structure with result data.
amount = readDS18B20(GPIO_FOR_ONE_WIRE, t); amount = ds18b20_read_all(GPIO_FOR_ONE_WIRE, t);
if (amount < sensors){ if (amount < sensors){
printf("Something is wrong, I expect to see %d sensors \nbut just %d was detected!\n", sensors, amount); printf("Something is wrong, I expect to see %d sensors \nbut just %d was detected!\n", sensors, amount);
@ -66,8 +66,10 @@ void broadcast_temperature(void *pvParameters)
for (int i = 0; i < amount; ++i) for (int i = 0; i < amount; ++i)
{ {
int intpart = (int)t[i].value;
int fraction = (int)((t[i].value - intpart) * 100);
// Multiple "" here is just to satisfy compiler and don`t raise 'hex escape sequence out of range' warning. // Multiple "" here is just to satisfy compiler and don`t raise 'hex escape sequence out of range' warning.
sprintf(msg, "Sensor %d report: %d.%d ""\xC2""\xB0""C\n",t[i].id, t[i].major, t[i].minor); sprintf(msg, "Sensor %d report: %d.%02d ""\xC2""\xB0""C\n",t[i].id, intpart, fraction);
printf("%s", msg); printf("%s", msg);
struct netbuf* buf = netbuf_new(); struct netbuf* buf = netbuf_new();

22
examples/ds18b20_onewire/LICENSE
View file

@ -1,22 +0,0 @@
The MIT License (MIT)
Copyright (c) 2016 Grzegorz Hetman : ghetman@gmail.com
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.

6
examples/ds18b20_onewire/ds18b20_onewire.c
View file

@ -30,7 +30,7 @@ void print_temperature(void *pvParameters)
while(1) { while(1) {
// Search all DS18B20, return its amount and feed 't' structure with result data. // Search all DS18B20, return its amount and feed 't' structure with result data.
amount = readDS18B20(GPIO_FOR_ONE_WIRE, t); amount = ds18b20_read_all(GPIO_FOR_ONE_WIRE, t);
if (amount < sensors){ if (amount < sensors){
printf("Something is wrong, I expect to see %d sensors \nbut just %d was detected!\n", sensors, amount); printf("Something is wrong, I expect to see %d sensors \nbut just %d was detected!\n", sensors, amount);
@ -38,8 +38,10 @@ void print_temperature(void *pvParameters)
for (int i = 0; i < amount; ++i) for (int i = 0; i < amount; ++i)
{ {
int intpart = (int)t[i].value;
int fraction = (int)((t[i].value - intpart) * 100);
// Multiple "" here is just to satisfy compiler and don`t raise 'hex escape sequence out of range' warning. // Multiple "" here is just to satisfy compiler and don`t raise 'hex escape sequence out of range' warning.
printf("Sensor %d report: %d.%d ""\xC2""\xB0""C\n",t[i].id, t[i].major, t[i].minor); printf("Sensor %d report: %d.%02d ""\xC2""\xB0""C\n",t[i].id, intpart, fraction);
} }
printf("\n"); printf("\n");
vTaskDelay(delay / portTICK_RATE_MS); vTaskDelay(delay / portTICK_RATE_MS);

22
extras/ds18b20/LICENSE
View file

@ -1,22 +0,0 @@
The MIT License (MIT)
Copyright (c) 2016 Grzegorz Hetman : ghetman@gmail.com
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.

12
extras/ds18b20/ds18b20.c
View file

@ -13,7 +13,7 @@
#define DS1820_ALARMSEARCH 0xEC #define DS1820_ALARMSEARCH 0xEC
#define DS1820_CONVERT_T 0x44 #define DS1820_CONVERT_T 0x44
uint8_t readDS18B20(uint8_t pin, ds_sensor_t *result){ uint8_t ds18b20_read_all(uint8_t pin, ds_sensor_t *result) {
uint8_t addr[8]; uint8_t addr[8];
uint8_t sensor_id = 0; uint8_t sensor_id = 0;
@ -55,18 +55,16 @@ uint8_t readDS18B20(uint8_t pin, ds_sensor_t *result){
float temperature; float temperature;
temperature = (temp * 625.0)/10000; temperature = (temp * 625.0)/10000;
//printf("Got a DS18B20 Reading: %d.%d\n", (int)temperature, (int)(temperature - (int)temperature) * 100); //printf("Got a DS18B20 Reading: %d.%02d\n", (int)temperature, (int)(temperature - (int)temperature) * 100);
result[sensor_id].id = sensor_id; result[sensor_id].id = sensor_id;
result[sensor_id].major = (int)temperature; result[sensor_id].value = temperature;
result[sensor_id].minor = (int)(temperature) - (int)temperature * 100;
sensor_id++; sensor_id++;
} }
return sensor_id; return sensor_id;
} }
float read_single_DS18B20(uint8_t pin){ float ds18b20_read_single(uint8_t pin) {
onewire_init(pin);
onewire_reset(pin); onewire_reset(pin);
onewire_write(pin, DS1820_SKIP_ROM, ONEWIRE_DEFAULT_POWER); onewire_write(pin, DS1820_SKIP_ROM, ONEWIRE_DEFAULT_POWER);
@ -101,5 +99,5 @@ float read_single_DS18B20(uint8_t pin){
temperature = (temp * 625.0)/10000; temperature = (temp * 625.0)/10000;
return temperature; return temperature;
//printf("Got a DS18B20 Reading: %d.%d\n", (int)temperature, (int)(temperature - (int)temperature) * 100); //printf("Got a DS18B20 Reading: %d.%02d\n", (int)temperature, (int)(temperature - (int)temperature) * 100);
} }

9
extras/ds18b20/ds18b20.h
View file

@ -3,18 +3,15 @@
typedef struct { typedef struct {
uint8_t id; uint8_t id;
uint8_t major; float value;
uint8_t minor;
} ds_sensor_t; } ds_sensor_t;
// Scan all ds18b20 sensors on bus and return its amount. // Scan all ds18b20 sensors on bus and return its amount.
// Result are saved in array of ds_sensor_t structure. // Result are saved in array of ds_sensor_t structure.
// Cause printf in esp sdk don`t support float, uint8_t ds18b20_read_all(uint8_t pin, ds_sensor_t *result);
// I split result as two number (major, minor).
uint8_t readDS18B20(uint8_t pin, ds_sensor_t *result);
// This method is just to demonstrate how to read // This method is just to demonstrate how to read
// temperature from single dallas chip. // temperature from single dallas chip.
float read_single_DS18B20(uint8_t pin); float ds18b20_read_single(uint8_t pin);
#endif #endif

9
extras/onewire/LICENSE
View file

@ -20,3 +20,12 @@ 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 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. SOFTWARE.
-------------------------------------------------------------------------------
Portions copyright (C) 2000 Dallas Semiconductor Corporation, under the
following additional terms:
Except as contained in this notice, the name of Dallas Semiconductor
shall not be used except as stated in the Dallas Semiconductor
Branding Policy.

13
extras/onewire/README.md
View file

@ -1,7 +1,14 @@
# Yet another one wire driver for the ESP8266 # Yet another one wire driver for the ESP8266
This is a port of bit banging one wire driver based on nodemcu implementaion. This is a port of a bit-banging one wire driver based on the implementation
from NodeMCU.
Seams that they port it from https://www.pjrc.com/teensy/td_libs_OneWire.html This, in turn, appears to have been based on the PJRC Teensy driver
(https://www.pjrc.com/teensy/td_libs_OneWire.html), by Jim Studt, Paul
Stoffregen, and a host of others.
For all aspect regarding license, please check LICENSE file and coresponding projects. The original code is licensed under the MIT license. The CRC code was taken
(at least partially) from Dallas Semiconductor sample code, which was licensed
under an MIT license with an additional clause (prohibiting inappropriate use
of the Dallas Semiconductor name). See the accompanying LICENSE file for
details.