Coding Club K-5

Our school is starting student clubs for Kindergarten-5th grade. We are fortunate to have 1:1 devices. K-2 has iPads and 3-5 has laptops. I need suggestions for implementing a coding club with a varied ages and 2 different devices. I will have someone teaching with me, so we could split the group. I don’t know how many students yet since they haven’t signed up. I want to be proactive! Thanks!