probe-frequency-offset.py

import requests, time, os, sys

# https://github.com/atc1441/E-Paper_Pricetags/tree/main/Custom_PriceTag_AccesPoint
# This script helps you probe for the ideal "Frequency Offset" setting.


address = "http://esl.local/"
username = "admin"
password = "admin"
serial = (sys.argv[1] if len(sys.argv) >= 2 else None) or "JC10062805B"
desired = (sys.argv[2] if len(sys.argv) >= 3 else None) or 123

def set_wakeup_channel_EU():
    response = requests.post(address + "set_wu_channel?freq=4", auth=(username, password))
    return response.status_code

def set_wakeup_channel_US():
    response = requests.post(address + "set_wu_channel?freq=35", auth=(username, password))
    return response.status_code

def set_offset(offset):
    response = requests.post(address + "set_freq_offset?offset=" + str(offset), auth=(username, password))
    return response.status_code

def activate(serial, desired):
    response = requests.post(address + "activate_display?serial=" + str(serial) + "&id=" + str(desired), auth=(username, password))
    return response.status_code

def recover(serial):
    response = requests.post(address + "recover_display?serial=" + str(serial), auth=(username, password))
    return response.status_code

def wake_and_full_sync():
    response = requests.post(address + "set_mode?mode=wusync", auth=(username, password))
    return response.status_code

def get_status():
    response = requests.get(address + "get_mode", auth=(username, password))
    return response.text.split("<br>")


attempts = list(range(0,45)) + list(range(45,60)) + list(reversed(range(-127, 0))) + list(range(60,127))
happy = False

set_wakeup_channel_US()

for offset in attempts:

    print("Trying", offset, "for serial", serial, "to set ID", desired)

    set_offset(offset)
    wake_and_full_sync()

    statuses = get_status()
    status = statuses[-1]

    while status != "mode Idle":

        statuses = get_status()
        status = statuses[-1]
        time.sleep(0.2)
    
    time.sleep(2)

    recover(serial)

    statuses = get_status()
    status = statuses[-1]
    prev = status
    print(status)

    while status != "mode Idle":
        
        time.sleep(0.2)

        statuses = get_status()
        status = statuses[-1]

        if statuses[-1] != prev:
            print(status)
        prev = status

        if status not in ["mode Wakeup", "mode Wakeup Reset", "mode Wakeup Activation", "mode Activation", "mode Idle", "mode Sync", "mode Full Sync"]:
            happy = True
            break

    activate(serial, desired)

    time.sleep(1)
    statuses = get_status()
    status = statuses[-1]
    prev = status
    print(status)

    idles = 0
    while idles < 5:
        if status == "mode Idle":
            idles += 1
        
        time.sleep(0.2)

        s = get_status()
        status = s[-1]

        if status != prev:
            print(status)
            prev = status

        if status not in ["mode Wakeup", "mode Wakeup Reset", "mode Wakeup Activation", "mode Activation", "mode Idle", "mode Sync", "mode Full Sync"]:
            
            happy = True
            break

    print(statuses[-2])
    if statuses[-2] != "last answer: No data received so far":
        happy = True

    for item in statuses:
        if "Activation" in item:
            if item not in ["Activation: timeout", "Activation: started", "mode Wakeup Activation", "mode Activation"]:
                print(item)
                happy = True

    if happy:
        break