This looks interesting, my friend. I can see a lot of uses for it, like a combination home automation/security platform. It would also make a nice front panel for custom built test equipment or production test fixtures. I would have put it into an automated test fixture at Microdyne rather than require a complete PC on a cart. It changed a 10 to 4 hour manual test, into under a minute.
@@MrTamhan That's not a problem. I enjoy communicating with people who want to share good information. Things have really changed in the last 25 years. We still used our few surviving HP 85 computers to run some tests. I took that crude automated fixture from a simple program that simply froze when a test failed, into an expert system. It displayed the current test on screen. When it encountered a failure, each previous cause was listed on screen to tell the tech what to test. I also corrected a lot of programming errors. The Engineering tech didn't finish the construction and programming. He was careless noting polarity in many tests. He just assumed every voltage was positive, in a split rail design. At least it stopped and displayed the voltage, which you had to 'learn to ignore' because he was too lazy to repair his code. He told me, "Fix he damned thing yourself!" Then he complained to my supervisor that I had "Tampered with his code" He was told never to tell me to do something, because it was well known that I would. I also added additional tests, and modified the fixture's design. I had to replace individual wires almost weekly on some of the dozens of Berg connectors. I added sockets, then short double ended IDC cables that could simply be replaced when they wore out. He built fixtures that would barely survive occasional use in Engineering, but they were hopelessly fragile for daily use in production. He's one person that I don't miss working with. He got upset when I was moved to Engineering to move a new $80,000 SDR based Telemetry product from the prototype stage into full production. I stirred up the entire division, starting with our in house board assembly. I also introduced .015" Ersin Multicore rework solder to the assembly side. This took a while to settle down, but our failure rate on new boards dropped quite a bit. No more tombstoning of passives or balls of un-melted solder trapped under surface mounted ICs. It turned out that their porcess had been set up when 1206 (3216 in mm) were new and hadn't been updated. They complained about the upfront costs, but never thanked me for their savings.
@@michaelterrell Hi Man, oh, I know this too well. Projects failing because of higher ranking officers being dim. It is, sadly, part and parcel of engineering...
@@MrTamhan What is a real pain is when you point out a deign flaw to the senior engineer who made it over a decade ago. They don't even want to look at the evidence. One of our produces used an early Hitachi 8-bit processor. (A Motorola clone) That product had been produced in small batches for over a decade. They often had a problem with the crystal connected to it nut starting. They would try multiple different crystals and exchanging the processor until they worked. Hen I ran into that problem, the schematic didn't look right. It was designed for the short lived NMOS version, which was obsolete before that radio went into production. They used a pair of 20 pF caps. I changed them to the specified 200 pF for the CMOS version. They not only started reliably, but the waveform was cleaner and had a higher amplitude. The old farts refused to sign my ECO, so I completed that run with the mod, anyway. They couldn't be shipped without five signatures. The division VP asked my supervisor where the radios were. He sent him to me. I handed him the schematic and the ECO. He went pale, because he had work on that model when he first started. I explained the problem, along with Engineering's refusal to sign it off. I told him that they were already boxed and labeled. They had been waiting in shipping for weeks, waiting for clearance. He took the ECO, "I'll be back in five minutes!" He was, with all five signatures. He grinned, "They don't refuse when their only choice is to sign, or be fired!"
@@michaelterrell Hi, sorry for being a bit slow in responding to you. This is of course a classic - nothing accelerates things as good as external pressure...
@@moormoor4281 Hello, then the main issue should be the AliExpress shipping. I had to request a sample unit from the field engineering team as the AliExpress shop does not offer DHL for some reason...
Its cool hardware. I actually prefer that they separate the Wi-Fi from the display microcontroller for the P4 because I had problems before running Wi-Fi tasks with LCD tasks on the ESP32-S3. However, I think one of the big problems with using this is the software tools for GUIs. The GUI editor (SquareLine Studio) for LVGL is terrible and they are no longer supporting LVGL as of 9.0. It seems to make way more sense to just use an application processor because the software tools are way more established. Unless there is something like QT for ESP32, I think developing GUIs is a waste of time. Also what exactly is the P4 trying to be? A downgraded tablet? Why not just use a tablet?
Realtime, instant boot, no bloat, inexpensive, low level hardware access, integrated peripherals, low power, power saving modes for long term battery operation, very small form factor, community, exquisite documentation etc. The are many advantages to a microcontroller based platform.
@@nikthefix8918 i think people underestimate the mountain of work behind os development on application processors. Using an os on an application processor is just light years ahead of anything you do with FreeRTOS on a microcontroller. I think microcontrollers should be just used for niche applications like reading sensor values and thought of like ASICs that you can mod.
I was one of those that associate Espressif with Wi-Fi chips only. Thanks for the heads up, Tam!
Thank you so much for talking back, my friend!
I am very excited about the next episode
Thank you, my friend. I am on it, sorry for being a bit slow...
@@MrTamhan You're welcome. Take all the time you need.
@@tim46767 Thanks man. I try to be as fast as I can!
This looks interesting, my friend. I can see a lot of uses for it, like a combination home automation/security platform. It would also make a nice front panel for custom built test equipment or production test fixtures. I would have put it into an automated test fixture at Microdyne rather than require a complete PC on a cart. It changed a 10 to 4 hour manual test, into under a minute.
Thanks for talking back, my friend. And sorry for being a bit slow on the e-mail.
This P4, yes, it is quite the HMI machine...
Tam
@@MrTamhan That's not a problem. I enjoy communicating with people who want to share good information.
Things have really changed in the last 25 years. We still used our few surviving HP 85 computers to run some tests.
I took that crude automated fixture from a simple program that simply froze when a test failed, into an expert system. It displayed the current test on screen. When it encountered a failure, each previous cause was listed on screen to tell the tech what to test. I also corrected a lot of programming errors. The Engineering tech didn't finish the construction and programming. He was careless noting polarity in many tests. He just assumed every voltage was positive, in a split rail design. At least it stopped and displayed the voltage, which you had to 'learn to ignore' because he was too lazy to repair his code. He told me, "Fix he damned thing yourself!" Then he complained to my supervisor that I had "Tampered with his code" He was told never to tell me to do something, because it was well known that I would.
I also added additional tests, and modified the fixture's design. I had to replace individual wires almost weekly on some of the dozens of Berg connectors. I added sockets, then short double ended IDC cables that could simply be replaced when they wore out. He built fixtures that would barely survive occasional use in Engineering, but they were hopelessly fragile for daily use in production.
He's one person that I don't miss working with.
He got upset when I was moved to Engineering to move a new $80,000 SDR based Telemetry product from the prototype stage into full production. I stirred up the entire division, starting with our in house board assembly. I also introduced .015" Ersin Multicore rework solder to the assembly side. This took a while to settle down, but our failure rate on new boards dropped quite a bit. No more tombstoning of passives or balls of un-melted solder trapped under surface mounted ICs.
It turned out that their porcess had been set up when 1206 (3216 in mm) were new and hadn't been updated. They complained about the upfront costs, but never thanked me for their savings.
@@michaelterrell Hi Man, oh, I know this too well. Projects failing because of higher ranking officers being dim. It is, sadly, part and parcel of engineering...
@@MrTamhan What is a real pain is when you point out a deign flaw to the senior engineer who made it over a decade ago. They don't even want to look at the evidence. One of our produces used an early Hitachi 8-bit processor. (A Motorola clone) That product had been produced in small batches for over a decade. They often had a problem with the crystal connected to it nut starting. They would try multiple different crystals and exchanging the processor until they worked. Hen I ran into that problem, the schematic didn't look right. It was designed for the short lived NMOS version, which was obsolete before that radio went into production. They used a pair of 20 pF caps. I changed them to the specified 200 pF for the CMOS version. They not only started reliably, but the waveform was cleaner and had a higher amplitude.
The old farts refused to sign my ECO, so I completed that run with the mod, anyway. They couldn't be shipped without five signatures. The division VP asked my supervisor where the radios were. He sent him to me.
I handed him the schematic and the ECO. He went pale, because he had work on that model when he first started. I explained the problem, along with Engineering's refusal to sign it off. I told him that they were already boxed and labeled. They had been waiting in shipping for weeks, waiting for clearance.
He took the ECO, "I'll be back in five minutes!" He was, with all five signatures. He grinned, "They don't refuse when their only choice is to sign, or be fired!"
@@michaelterrell Hi, sorry for being a bit slow in responding to you. This is of course a classic - nothing accelerates things as good as external pressure...
Very exciting! Thank you!
Thank you so much! I am really honoured also by Espressif, that they gave us this amazing board!
Thanking you for the information on this new esp device
It is my pleasure. Thanks for talking back. Please stay here, soon more also on the RP2350
@@MrTamhan that will very interesting as well but we're I can I get order same as yo have please I'm in England
@@moormoor4281 Hi, thank you for talking back! Does the AliExpress store not ship to the UK?
@@MrTamhan yes 👍 I have purchased one it's why too England
@@moormoor4281 Hello, then the main issue should be the AliExpress shipping. I had to request a sample unit from the field engineering team as the AliExpress shop does not offer DHL for some reason...
Thanks for the video!!
Hi, thank you so much for talking back! It is my honour that my channel is useful for you!
Congratulations.
Thank you! It is always a pleasure to have an expert like you visit the channel! Cordially yours, I remain!
Great job!
Thank you so much for the praise! I am glad you like the channel!
Have you flashed any programs onto the board (without the USB)? I'm wondering how to do it.
Examples from esp-idf master branch still dont work. Tried mipi dsi example. On installing the controll panel wdt was triggered with exceptions.
Its cool hardware. I actually prefer that they separate the Wi-Fi from the display microcontroller for the P4 because I had problems before running Wi-Fi tasks with LCD tasks on the ESP32-S3. However, I think one of the big problems with using this is the software tools for GUIs. The GUI editor (SquareLine Studio) for LVGL is terrible and they are no longer supporting LVGL as of 9.0. It seems to make way more sense to just use an application processor because the software tools are way more established. Unless there is something like QT for ESP32, I think developing GUIs is a waste of time. Also what exactly is the P4 trying to be? A downgraded tablet? Why not just use a tablet?
Realtime, instant boot, no bloat, inexpensive, low level hardware access, integrated peripherals, low power, power saving modes for long term battery operation, very small form factor, community, exquisite documentation etc. The are many advantages to a microcontroller based platform.
@@nikthefix8918 i think people underestimate the mountain of work behind os development on application processors. Using an os on an application processor is just light years ahead of anything you do with FreeRTOS on a microcontroller. I think microcontrollers should be just used for niche applications like reading sensor values and thought of like ASICs that you can mod.
@@puddletowntom Some applications simply must be deterministic. I don't think much avionics use linux.
How much does it Cost?
I am very Excited! Love From India❤
Thank you, my friend! I think it costs around 60 EUR on AliExpress! Should I ask for you at Espressif for the Indian price?
Its not available yet right?😅
You can order the board on AliExpress...afaik they ship within 2 weeks. The chip itself not though
@@MrTamhan cool thanx keep these videos coming!
@@bobby9568 Thanks Man, I will. But I also have an RP2350 on hand, so I am a little overloaded