Genius. Thank you. I got utterly lost on clk's. Thanks for getting me on track. Do more pathfinding videos with micros. The Arduino age is ending. People are growing up into real micros and need some guidance.
The Arduino nano can be put into low part mode too. But the nano's voltage regulator (ldo) always takes about 5mA. If you replace the LDO, you can run the nano at microAmps too. I like the msp too: run at 16 MHz with no external crystal. Arduino had to go down to 5 MHz(?) to run without a crystal (when you make your own pcb).
Interesting part. I hadn't been aware of the MSP430G2553. (I've been out of touch with embedded parts for quite awhile. :) Just yesterday I was reading the specs and manual for the ESP32. It has several power levels with the lowest being 0.1uA. Active mode: The chip radio is powered on. The chip can receive, transmit, or listen. - Modem-sleep mode: The CPU is operational and the clock is configurable. The Wi-Fi/Bluetooth baseband and radio are disabled. - Light-sleep mode: The CPU is paused. The RTC memory and RTC peripherals, as well as the ULP co-processor are running. Any wake-up events (MAC, host, RTC timer, or external interrupts) will wake up the chip. - Deep-sleep mode: Only RTC memory and RTC peripherals are powered on. Wi-Fi and Bluetooth connection data are stored in RTC memory. The ULP co-processor can work. - Hibernation mode: The internal 8-MHz oscillator and ULP co-processor are disabled. The RTC recovery memory is powered down. Only one RTC timer on the slow clock and some RTC GPIOs are active. The RTC timer or the RTC GPIOs can wake up the chip from the Hibernation mode. I don't know how these two chips compare with each other but I think the ESP32 has many more features such as WiFi and BT. Looking on Mouser the ESP32 is in the $3 range while the MSP43G2553 is in the $2.50 range in small quantities. Thanks for another fascinating video.
Espressif is the new kid on the block and they have some amazing products. The 0.1uA they advertise is Power Off mode where the reset line is held low. Waking up would mean rebooting. I think the sleep mode for the ESP32 is 10uA. The sleep mode current is not the only spec to look at, wake up time and active current is also important. All vendors now are making low power micros because of handheld devices. Microchip has a 10nA sleep device. I used the MSP430 because it comes in a DIP package and lots of code is available because it has been around for a long time.
I see you are also using the same Telephone wire that I use for breadboard jumpers. Unfortunately I ran out of that wire. Would be greatly appreciated if you could pass along your source of that wire...;)
It is 25 pair comm cable used in telephone systems wiring. You can get it at any cable supply store. The same place where the telephone companies get their supplies. www.anixter.com/en_us/products/Voice-and-Data-Cable/p/CM-02524BAG-3
You can use Energia, an Arduino compatible IDE for the MSP430. This will allow you to run Arduino sketches on the MSP430. www.instructables.com/id/Use-Arduino-code-on-a-TI-Launchpad-MSP430/
Be aware that Energia lets you program pins as pwm that won't actually support pwm. There are other similar problems I encountered a few years ago so they may have fixed it. Anyone know?
what is wrong with the IDE CCS ? I program it fine, all you need is good C, and read the user manual abit, and a couple of video tutorials and you are good to go
Genius. Thank you. I got utterly lost on clk's. Thanks for getting me on track. Do more pathfinding videos with micros. The Arduino age is ending. People are growing up into real micros and need some guidance.
The Arduino nano can be put into low part mode too. But the nano's voltage regulator (ldo) always takes about 5mA. If you replace the LDO, you can run the nano at microAmps too.
I like the msp too: run at 16 MHz with no external crystal. Arduino had to go down to 5 MHz(?) to run without a crystal (when you make your own pcb).
Interesting part. I hadn't been aware of the MSP430G2553. (I've been out of touch with embedded parts for quite awhile. :)
Just yesterday I was reading the specs and manual for the ESP32. It has several power levels with the lowest being 0.1uA.
Active mode: The chip radio is powered on. The chip can receive, transmit, or listen.
- Modem-sleep mode: The CPU is operational and the clock is configurable. The Wi-Fi/Bluetooth baseband and radio are disabled.
- Light-sleep mode: The CPU is paused. The RTC memory and RTC peripherals, as well as the ULP co-processor are running. Any wake-up events (MAC, host, RTC timer, or external interrupts) will wake up the chip.
- Deep-sleep mode: Only RTC memory and RTC peripherals are powered on. Wi-Fi and Bluetooth connection data are stored in RTC memory. The ULP co-processor can work.
- Hibernation mode: The internal 8-MHz oscillator and ULP co-processor are disabled. The RTC recovery memory is powered down. Only one RTC timer on the slow clock and some RTC GPIOs are active. The RTC timer or the RTC GPIOs can wake up the chip from the Hibernation mode.
I don't know how these two chips compare with each other but I think the ESP32 has many more features such as WiFi and BT.
Looking on Mouser the ESP32 is in the $3 range while the MSP43G2553 is in the $2.50 range in small quantities.
Thanks for another fascinating video.
Espressif is the new kid on the block and they have some amazing products. The 0.1uA they advertise is Power Off mode where the reset line is held low. Waking up would mean rebooting. I think the sleep mode for the ESP32 is 10uA.
The sleep mode current is not the only spec to look at, wake up time and active current is also important.
All vendors now are making low power micros because of handheld devices. Microchip has a 10nA sleep device.
I used the MSP430 because it comes in a DIP package and lots of code is available because it has been around for a long time.
Thanks for the reply. I'm really learning a lot from your channel.
Another great video here!
Thanks again for sharing your knowledge
What was the circuit board you showed at last?
Its a RFID tag. This is a long range version so it has its own battery.
ua-cam.com/video/6oln7kEXJJE/v-deo.html
EXACTLY I WORKED THESE PROJECTS!
so one more question: the external interrupt key. you mention that its coming from the computer. Are you waking up the MSP430 through RX/TX then ?
Wake up is through a serial RX interrupt.
Any key press on the keyboard will wake it up.
so the Keeper batteries are non-rechargeable?
Yes .. they are non-rechargeable. After ten years the product is a throw away item.
I see you are also using the same Telephone wire that I use for breadboard jumpers.
Unfortunately I ran out of that wire. Would be greatly appreciated if you could pass along your source of that wire...;)
It is 25 pair comm cable used in telephone systems wiring.
You can get it at any cable supply store. The same place where the telephone companies get their supplies.
www.anixter.com/en_us/products/Voice-and-Data-Cable/p/CM-02524BAG-3
Thank you for the reply and link... ;)
Could it be used for making a micro drone ?
Yes ...
Nice job, TNX for sharing !
73 N8AUM
Diodes, who needs them! inspect androidcircuitsolver on google
msp430 would be a lot more popular if TI would make an arduino core for it.
You can use Energia, an Arduino compatible IDE for the MSP430.
This will allow you to run Arduino sketches on the MSP430.
www.instructables.com/id/Use-Arduino-code-on-a-TI-Launchpad-MSP430/
I like this video. Everything about it is great. Even knowing about the 3.5 lipo batteries
Thanks for the feedback1
Be aware that Energia lets you program pins as pwm that won't actually support pwm. There are other similar problems I encountered a few years ago so they may have fixed it. Anyone know?
what is wrong with the IDE CCS ?
I program it fine, all you need is good C, and read the user manual abit, and a couple of video tutorials and you are good to go