Custom Slider widget can't get value '0'

I have created a custom Slider widget to have a Slider on Cayenne with those settings :
Min Value : 0
Max Value : 100
Step between values : 10

The slider is connected with my Rpi, added with the Bring Your Own Thing feature.
Here’s my Python 3 Code :

#!/usr/bin/env python3

import cayenne.client #Cayenne MQTT Client
from gpiozero import PWMLED
slider=PWMLED(17) #Utilisation du Gpio17

Les infos du Device auquel nous voulons nous connecter

MQTT_USERNAME = “6f48ba60-6dbb-11e9-b4eb-6bf2c2412b24”
MQTT_PASSWORD = “8c0bd26c591b93077bc5c2357e15f1384ac5ca97”
MQTT_CLIENT_ID = “38865770-7000-11e9-be3b-372b0d2759ae”

Callback apres reception d’un message de cayenne

def on_message(message):
print("message received: " + str(message))
if #canal 2
if float((slider.value)*100) <= 1.0:
slider.value = 0
print("Valeur nulle "+ str(slider.value))
print("La valeur du Slider est: "+ str((slider.value)*100))

client = cayenne.client.CayenneMQTTClient()
client.on_message = on_message #A la reception d’un message, fait : def on_message

while True:

I’ve tried what I’ve seen on others topics, put the min value at 0.1 and have a step value equal to 0.1… but I don’t want a slider like that. :frowning:

If you have any idea to solve my problem I would be gratfull :slight_smile:
Thanks in advance.