According to Google the limit = 1000 a day.
not so much for a good running project
i use a own, private module version with Google API3, with colored and circle maps etc.
a customer and some users ask me for a combined module, usable for google- and the free leaflet-/open street maps. so i'm sitting here at the last days and build a new backend administration for that and ask myself more and more: is it a good idea to use google maps to show a adress etc?
the most projects with maps like this are small projects with 50 - 100 visits every day, for the bigger projects i use open street map with a code²-section (generator see here
its of course possible, to build a module, but there are so many settings possible (see here
for google maps), different design's, different colors, marker etc. because of this, google stops the project "Map Maker" - too many possible settings - see free styles for google maps here
, looks very nice and modern. In my actual mapbaker-module, i have a text-field to import the delivered code from a snazzy map, see my favorite here
and click on the button "EXPAND CODE", to show the whole option code for this map style, but you have to be an expert for that, if you want to change anything and build your own style. if you dont use any option, you see a simple map, but if you have a error in this code (forget to copy a line, change anything etc), the page is empty, no map and in worst case, no other content behind the map section.
to show a simple map, i can also use a plugin for the ckeditor
, i dont need a special module for that. See also the demopage
And for the experts, its possible, to add more settings directly into the ckeditor source code, to have a style like a google map
See also here Tips && Tricks
and look there to the code of the examples, crazy, to build a control panel for that, a simple panel is no problem, but why, i have it in the editor. But if you want to use multiple markers (like the mapbaker module) or if you need other options, its very complexe.
and the other side....if i'm looking back, here was a community with tousends of users, a big pool with ideas, testers, coders, but today, it looks for me, that we're not more than 100 users here, include the guest's, maybe 1 or 2% of them have interest for a module like this. you spend a couple of weeks, to develop a module like this and at the end, the module is too hard to configure or you miss something....