ventil/esp8266_CC1101_davis_vantage_vue
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freq comp added

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This commit is contained in:
Milan Ventil Toman
2020-06-02 14:54:54 +02:00
parent 30ead0f61e
commit 095fbf52f5
4 changed files with 48 additions and 15 deletions
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cc1101_davis.mpy
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8
cc1101_davis.py
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@@ -358,6 +358,8 @@ class CC1101(object):
self.hopIndex += 1 # Increment the index
if (self.hopIndex > 4): # 5 EU frequencies
self.hopIndex = 0
present = self.readRegister(self.CC1101_FSCTRL0)
print("Present value: {}, WRITING {} TO CC1101_FSCTRL0 / {}".format(present, self.freqComp[self.hopIndex], self.CC1101_FSCTRL0))
self.writeRegister(self.CC1101_FSCTRL0, self.freqComp[self.hopIndex])
self.setFrequency(self.hopIndex) # Set the frequency.
@@ -388,3 +390,9 @@ class CC1101(object):
def readLQI(self):
return self.readRegister(self.CC1101_RXFIFO) & 0x7F
def calcFreqError(self, value):
if value >= 128:
error = (value - 256) >> 1
else:
error = value >> 1
return error

31
main.py
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@@ -4,7 +4,20 @@ import utime
import WiFi
gc.collect()
#_SSID = 'BastArt'
#_PASS = '3 litry Kvasaru!'
#_TIMEOUT = 15
_DEBUG = False
#
#_INFLUX_HOST = '192.168.1.2'
#_INFLUX_PORT = '8086'
#_INFLUX_USER = 'ventil'
#_INFLUX_PASS = '3 litry Kvasaru!'
#
#_INF_DB_WEATHER = 'weather'
#_INF_DB_STATUS = 'status'
#_INF_DB_RAW = 'raw'
wifi_con = WiFi.NetSet('infra')
wifi_con.readNetworkConfig()
@@ -25,6 +38,7 @@ decoder = davis_decode.davisDecoder(
wifi_con._INF_DB_RAW)
# Main receive loop
interpacket_time = 0
while True:
data_length = davis.readRegister(davis.CC1101_RXBYTES)
data = ""
@@ -32,6 +46,14 @@ while True:
data = davis.readBurst(davis.CC1101_RXFIFO, 10)
rssi = davis.readRssi()
lqi = davis.readLQI()
freqEst = davis.readStatus(davis.CC1101_FREQEST)
freqError = davis.calcFreqError(freqEst)
print("FERROR: {} (EST: {})".format(freqError, freqEst))
print("FCOMP: {}".format(davis.freqComp))
if davis.freqComp[davis.hopIndex] + freqEst <= 255:
davis.freqComp[davis.hopIndex] = davis.freqComp[davis.hopIndex] + freqEst
else:
davis.freqComp[davis.hopIndex] = 255
hop = davis.hopIndex
davis.flush()
davis.hop()
@@ -49,12 +71,13 @@ while True:
data_int[6],
data_int[7],
data_int[8],
data_int[8],)
print("{_data:60} HOP: {_hop:<5} RSSI: {_rssi:<5} LQI: {_lqi:<5}".format(
data_int[9])
print("{_data:60} HOP: {_hop:<5} RSSI: {_rssi:<5} LQI: {_lqi:<5} {_last}s since".format(
_rssi=rssi,
_hop=hop,
_data=data_prn,
_lqi=lqi))
_lqi=lqi,
_last=interpacket_time / 10))
if _DEBUG:
print("Header: {} Wind: {}".format(header, decoder.wind))
print("{}: {}/{} ({})".format(
@@ -84,6 +107,8 @@ while True:
print("DATA SEND: {}".format(data_sent.status_code))
else:
print("DATA SEND FAIL: {}".format(data_sent))
interpacket_time = 0
else:
interpacket_time += 1
utime.sleep_ms(100)
gc.collect()

24
readme.md
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@@ -1,11 +1,11 @@
#ESP8266 + CC1101 Davis weather station wifi logger
# ESP8266 + CC1101 Davis weather station wifi logger
The intention is to gather data from a Weather station made by Davis.
In this case a Vantage Vue (integrated all sensors in one package) and
push them directly to an InfluxDB instance via WiFi.
##Prerequisites:
## Prerequisites:
- WiFi available, plus access to it. (WPA2 PSK preferred)
- Running INfluxDB instance on the same network
- ESP8266 microcontroller (NodeMCU 8266 preferred)
@@ -16,8 +16,8 @@ push them directly to an InfluxDB instance via WiFi.
- a couple wires, need to solder those tiny CC1101 pins and wires.
- 5V / 3.3V source, depending on what version of ESP you get. A stable 3.3V is preferred
##Quick setup of HW:
###1. Interconnect these pins:
## Quick setup of HW:
### 1. Interconnect these pins:
The pins are marked on the NodeMcu ESP8266, on the CC1101 module, pins are counted from left, if you face the chip towards you.
ESP8266 | ESP8266 description | CC1101 | CC1101 description |
@@ -34,13 +34,13 @@ ESP8266 | ESP8266 description | CC1101 | CC1101 description |
IO pin GDO0, currently configured as interrupt, when new packet is received (i.e. goes HIGH).
This currently just to lights up a led, interrupt based receive is not implemented, though sounds cool.
###2. Clone this repo, get Micropython
### 2. Clone this repo, get Micropython
```
git clone https://bastart.spoton.cz/git/Ventil/esp8266_CC1101_davis_vantage_vue.git
cd esp8266_CC1101_davis_vantage_vue
wget https://micropython.org/resources/firmware/esp8266-20191220-v1.12.bin -P /tmp
```
###3. Upload Micropython, check
### 3. Upload Micropython, check
Need to delete the flash first, then write the custom firmware.
You need to determine which device is the one
to write to. If you have only one ESP8266, you are probably safe to use the ttyUSB0,
@@ -121,7 +121,7 @@ Terminal ready
```
Exit from the console with Ctrl + A + X or ampy will not be able to list files
on the esp8266
###4. Freeze modules, or just upload the .mpy files
### 4. Freeze modules, or just upload the .mpy files
You can simply upload all the modules in question. If you modify anything in the .py
files, you need to freeze them again with mpy-cross <filename>
```
@@ -138,9 +138,9 @@ WiFi.mpy <-- the newly compiled (frozen) module
WiFi.py
```
###5. Modify inet.conf
### 5. Modify inet.conf
Before uploading the inte.conf, please change it to your desired values.
###6, Upload files
### 6, Upload files
```
/usr/bin/ampy -p /dev/ttyUSB1 put boot.py
/usr/bin/ampy -p /dev/ttyUSB1 put main.py
@@ -155,7 +155,7 @@ Before uploading the inte.conf, please change it to your desired values.
/main.py
```
###7. If you haven't already, create 2 DBs in inclux
### 7. If you haven't already, create 2 DBs in inclux
I am tempted to push the raw, undecoded data to a DB as well, but influx is not siutd for this. You can ignore the last DB creation
```
ssh 192.168.1.2
@@ -164,7 +164,7 @@ create database weather
create database status
create database raw
```
###8. Restart esp8266, check data on serial
### 8. Restart esp8266, check data on serial
```
picocom -b 115200 /dev/ttyUSB1
picocom v3.1
@@ -310,7 +310,7 @@ If you are interested in the packet format, please:
224 13 3 17 3 3 32 253 255 255 HOP: 1 RSSI: -68.5 LQI: 127
```
###9, explore data in Influx
### 9, explore data in Influx
You're all set, let's look at the data
```
ssh 192.168.1.2