Repair broken Nebra indoor with eMMC failure

The first versions of Nebra indoor miner came with CM3 (Raspberry Pi Compute Module) embedding eMMC memory. As you may know, Helium has been really I/O intensive, particularly this summer when the blockchain was filling really fast the small amount of storage the CM3 has. As a consequence, all my Nebra indoor miner dead around the same week. Diagnostic seemed to be a storage failure.

Here is the story about making them live again

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Helium console, is it a $6600 business ?

Some time ago, a twitter thread made the community react about the amount of $6600 of communications consumption on the Helium network. This thread was full of approximations in order to present negatively the growth of the Helium network. But it is also an opportunity to take stock of the development of the use of the network. We will see in this article who operates the Helium decentralized network, what are the current data volumes and what are the associated financial metrics.

In short, we cannot talk about Nova Labs’ revenue with respect to direct communication costs because these costs are associated with different third parties offering the packet routing service. We cannot rely on this cost to estimate an associated business volume because there are many indirect costs as I have already specified in my blog post analyzing the running costs of a Helium router/console. Finally, regarding a long period where gamers found a way to earn a few dollars on the back of Nova Labs, involving many ancillary costs, distorted the data for June. You will understand all this in the rest of the article.

Disclaimer: I’m the owner of the public helium console helium-iot.eu (oui 6) – no need to makes comment like “he have written this because he own … blablabla”

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Understand Hip-51 – Helium becoming a network of network

The HIP-51 (Helium Improvement Proposal #51) starts a new way for Helium network. When it has started about 2 years ago, Helium has been designed to propose a global LoRaWan network. But, has I explained at the beginning of this journey, it’s not just a network, its the uberization of the telecom industry. In other words, once you find a good way to transform an industry, there is no reason to just transform on of its services, better is to transform all.

Telecom are not single network, they have IoT networks with LoRaWAN, NB-IoT, LTE-M, they have some WiFi services and 4G/5G services. The HIP-51 is basically a way to go that multi-service direction to compete with telecom industry.

I’ll detail in this post the way this is working (as much as I understood it, reading the HIP-51 currently under vote), and try to explain what will be the impact on the network and tokens.

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Monitor Helium Router / Console

The Helium router (aka console) is the LoRaWan network server. In a previous post I described how to setup a Helium router / console. In this post I will give you some details of what you can see in the grafana monitoring dashboard and this will help you to understand better how the network works to process the LoRaWan packets. We are going to detail what is an offer, a packet and the different monitoring information we can get from the router.

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Roaming LoRaWan with Helium network

Helium is an open network, decentralized, there is a wide range of option you can do as a user, like creating your own private router to have your devices encrypted end-to-end. You can also make your LoRaWan traffic to be routed from Helium network to your own network when you are a LoRaWan network provider. Let’s take the exemple of a Telco with a LoRaWan network, let’s name it B’telco and imagine B’telco have an existing network in France. Imagine they want to extends their coverage worldwide, eventually reduce their local cost by removing some redundancy in the cities. In a such case, they can roam traffic over helium.

This means that the data of B’telco devices will be acquired by helium router, exactly as a Helium data, and then it will be routed to B’telco network server transparently. That way, the customer will have a better coverage and the B’telco cost for this worldwide extension will be really low.

In this blog post, I’ll explain how this roaming feature works and what is needed to deploy it.

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SenseCAP M2, the Helium data-only hotspot, (close to be) ready-to-go

Sensecap M2 – data only

Until now, all the Helium data-only hotspot I have been tested where DiY devices. They are not really complicated to manage but they are not ready-to-go, so you need to manually on-role them with a wallet and some complex CLI operation for the non-experts. This SenseCAP M2 is the first one I’m testing, ready-to-go or close to be ready-to-go (that does not means it is the only one existing).

As it is a Data-Only hotspot, it means it does not participate to the Proof of Coverage, as a consequence, there is no related rewards for this device. This device only earn the DC (Data Credit) for transferring the communications, so $1 for 100.000 packets. Before getting question, this have no return on invest in a crypto point of view. This has been made to help supporting professional applications on the Helium network.

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COTX-X3 helium miner review

After reviewing different Helium miner like RAK, Sensecap, Kerlink, Nebra… now comes the Cotx-X3 miner. This miner has a long story and a bad reputation, due to something not really clean the maker did with the first units.

This is not related to the hardware quality and I’ve been happy to buy some of them for reviewing it. This miner is a full miner, based on a standard design using a Raspberry Pi 4. It has the particularity of having a front screen and an audio jack ! Don’t laughs, the reason is simple, this device has a different usage before becoming an helium miner.

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Deploying Helium-ETL instance with API

Helium blockchain ETL is basically a copy of the Helium Blockchain into a database. That way you can query the helium blockchain history to build apps like monitoring, tax management…

The Helium blockchain API project is connected to the Helium ETL to get an easy access to these data.

I’m currently building a tool to monitor and alarm a fleet of hotspots (stay tuned) and it currently uses the Helium API (api.helium.io). But helium APIs are a bit overloaded and not made to support high rate querying from each of the application any member of the community is developing. So I’ve been decided to make my own instance of ETL and API for my own purpose. This is the experience I’ll describe in this blog post:

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