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Hi Klaus, thanks for your reply.
Power input will be from usb and it is 5VDC. Battery charging current should be 1A or 2A.
I have never designed a circuit with battery and its charging stage.
Current cunsumption is around 800-1000mA and i need to run for 5-6 hours min. So i need to have...
Hi every body,
I am using ESP32-wroom-32E module and I need it to power it with 18650 Li-Ion battery. It should work like this,
- When there is power input, it should power from power input and charge battery
- if battery is fully charged, it should cut-off battery charging.
- if there is no...
Hi everybody,
I need to power up my custom design ESP32 board with battery. I don't want to design my own BMS. I have power input and need battery when power is down. I found a module called as FDC-2S-2 which is 2S battery charger. It only has power pins and battery pins. How should I connect...
Hi everybody,
We are making a new PCB design for one of my project and we are using a ready case and we need to make design according to that. We are using MiniPCI modems with USB interface which is connected to SBC. In our new design, we cannot put simcard connector pcb because user cannot...
Hi everybody,
I am working on a project and I need to control a LM2576 voltage converter with ESP32 IO pin.
I made a design with optocoupler which is connected to enable pin of LM2576.
I am asking this question because I have never experienced this situation before.
We always connected the...
Hi everybody,
I am trying to implement an adaptive kalman filter for 2 gyro and gnss data. sensors output is 20Hz and gnss output is 10Hz. For kalman filter calculation, there is time interval value at transition matrix. I am confused about declearing delta time value. Should I decleare value...
Hi klaus,
As i said driver is integrated and we can't do anything to driver. i meant to adding a component to power supply input. Or any other suggestion to disable knocking noise when it is operated by hand
Hi everybody,
We have special purpose dc servo motor on a machine. Motor has 7 input pin which are
vdc +
Vdc -
Serial tx
Serial rx
Gnd
Canopen Can_H
Canooen can_L
Our problem is motor work normal when machine is powered on. When there is no power on machine, there is a handwheel on the other...
Hello everybody,
We have a project to set up in field. We have a wifi devices and need 4G modem as access point to use internet from them. I know there is ready to use products in market but our manager ask us to use our in stock product which is EC200T-EU Mini PCIe module. I made some research...
Hi Klaus,
My problem is we try to program ESP32 with programming header connected to ESP32 TX-RX line directly. Normally we designed the board as follow. max3232 tin and rout connected to directly to ESP32 pins.
When we try to program ESP32 it has communication problem. and I made some...
Hi there,
I am trying to design a pcb with ESP32 and using max3232 for serial communication. My problem is when I connect max3232 directly with max3232, I cannot program ESP32 on TTL pin header. When I made a research I need to add resistor between max3232 and ESP32 to program it on TTL side. I...
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