I've set up the aurora node myself and configured the NEAR wallet to pay the gas fee with NEAR. I understand that I can ask users to pay the gas fee with ETH by enforcing the gas price, to compensate for the loss of the relayer. While after relayering the transaction, I see no increase in my local node NEAR wallet balance. So Where did the ETH paid by users go?
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At a public school, three different energy production methods must be established for teaching use:
A solar cell (approx. 1 m2)
A windmill (also very small)
An exercise bike
The electricity produced is stored on a battery, from which the students can use it to drive water pumps etc.
We would like to measure the electricity production and consumption in a way where data is sent every second (or at least every 5 seconds) to an API (which we would like to make ourselves if necessary) so that data can be stored in a database.
We prefer that we measure everywhere with the same kind of hardware, so that we don't have to integrate for different ways of getting this data.
We therefore imagine that we will find an electricity meter that we can connect to each device - the solar cell, the bicycle, the wind turbine, the water pump (so that the electricity produced or consumed flows through the meter). And then this meter is online (WiFi is available) and calls the API with its data.
My question is 'simply': What hardware products exist for this?
Hope it makes sense. Or else; ask! 🙂
I'm playing a little with spot instances, and for example, in Databricks, I can ask for a spot instance with a minimum of % savings over On-Demand instances.
My question is, if I set 90% off the On-Demand instance and the current price is 50%, I will get the cheaper instance or is it like bidding and I get the spot for 90% price?
I have some use cases when the availability of one instance is not very important so will be good to get those at any discount.
Summing up, if I set a minimum of 90% I will always get the cheaper spot available?
Thanks!
As per the this article from databricks:
Databricks defaults to a bid price that is equal to the current on-demand price. So if the on-demand price for your instance type is $0.665 cents per hour, then the default bid price is also set to $0.665 cents per hour.
Recall that with Spot instances, you don’t necessarily pay your actual bid price - you pay the Spot market price for your instance type. So, even though you may have bid $0.665 cents, in reality you may only be charged $0.10 for the hour.
So its safe to assume that you will be charged whats the current spot market price but not more then what you set.
I manage the advertising campaigns of some clients with fixed monthly budgets. I'm trying to create a formula that will (a)show how their budget is pacing based on the amount they have spent vs the month elapsed. And (b) if they are overpacing on their monthly budget, what do they need to increase their monthly budget to in order to maintain their current pace of spend. Any help would be much appreciated :)
I am planning to start a bulk sms service provider business. However I have the following doubts:
Which SMS/MMS Gateway software is good/best for high volume traffic(
OzekiNG, NowSMS etc)?
Do I need to setup connections with all the
major mobile operators or a single major operator will also work?
For the case of 2-way SMSs how can I charge money from the
customers?(e.g. usually the operator charges for the sms, but I need
to get something also)
How much will be the initial costing?
Consider kannel? http://www.kannel.org/
It depend, to guarantee realiability, you should consider connect to the mobile operator. But it would seem a lot of mno in the world hence there are some other aggregators which you can connect to such as the one you mentioned in your first question.
You need something called reverse charging. Read http://en.wikipedia.org/wiki/Reverse_SMS_billing for more information.
The cost will always depend on which operator you integrate with. So remember to quote for their initial costing. You can reference the operators pricing mechanism.
You can read following guide especially written for service providers mentioning that how one can start VoIP based Voice SMS or FAX broadcasting business, Following are answers to your questions respectively
For bulk SMS traffic you must go with SMPP protocol, Fortunately kannel has good support for SMPP and its available freely.
Multiple providers are better, for Failover and comparatively lower cost due to LCR.
It is obvious that you will charge your clients for outgoing SMS. however for inbound you can earn from DID numbers ( user have to pay rent for their inbound number ) further if you have large number of active DIDs / Phone numbers you can earn money from providers too ( who send traffic to your DIDs ) against termination and SS7 dips. but its very advance topic and only feasible for big players.
For initial cost calculation you have to consider multiple things like Infrastructure and server setup, Software licensing fees and 3rd party cost regarding DIDs and Termination services.
Hope it will help
Do the carriers (say AT&T) charge a fee for sending messages through APNS? If so, where can I find the pricing details?
As far as I'm aware there are no costs to the sender... The only possible costs would be on the customer's side.. if they do not have an all inclusive data plan or if they have gone over their data limits. But the notifications are absolutely tiny in size data wise.. so that really shouldn't be an issue.
So basically it's sent as data and not through the cellular networks.