Hello everyone,
my name is Milos, I come from Bosnia. I am an air traffic controller with a solid knowledge in hardware programming and electronics, and I am trying to build my first Ardumower.
First I would like to thank to all of you who made this great project possible, awesome work!
The biggest problem I find is trying to translate German documents and understand everything correctly.
Let me briefly explain my future Ardumower setup (I will open a separate thread later with all the details):
- The mower will be built from cheaper parts (mostly from China) because I need to keep the cost down.
- The wheel motors are Faurecia worm gear motors from eBay (12V, 17 rpm on output shaft, very powerful, ample amount of torque): link
- The mower motor is Chinese Gindun ZY6812 (24V, 3200 rpm, 80W): link
- The motor drivers are LN298
- The battery is 2 x Lead Acid 7 Ah battery, connected in series (for 24V): link
- The charger will be placed in the charging station together with the perimeter sender. The charger consists of a 30V 3.2A DC power supply which is digitally regulated to 29V 2A for optimal charging. The charging electricity will be transferred to the Ardumower via sliding contacts in the charging station.
I have several questions about the PCB assembly, and I would be grateful if someone could answer them to help me:
1. Can someone explain internal vs external charging? As far as I understand it, external charging is the case when a "smart" external charger is used (a charger which has charging control and balancing built in it), and internal charging is when a "dumb/stupid/simple" charger is used and in that case the PCB does the charging control via relay?
Is this correct? Is the charging that I will use called internal charging?
2. With this battery/charging setup, do I need both INA169 boards (both U5 and U3)?
3. Can someone explain the error near the capacitator network/array?
In your Prototyp Platine document, you say in German: Es müssen an den Arduino Pins 12,13,14,15 die Verbindung zu den Kondensatornetzwerk entfernt werden. Sollte das Kondensatornetzwerk noch nicht eingebaut sein die entsprechenden Beine
einfach bei Seite biegen oder abschneiden. and Google Translate says: It must be removed to connect to the Arduino Pins 12,13,14,15 to the capacitor network. If the capacitor network is not yet installed the corresponding legs just bend or cut off at page.
Can someone please explain this? What needs to be removed, and which pins need to be bent and why?
Also, on page 30 of Prototyp Platine (about odometry error), there is a photo in which four PCB traces are scratched/damaged.
However on my PCB (v1.2), there are five lot pads on those same traces, and they are not connected? What do I need to do with this?
4. Where should I solder the IRLIZ 44N MOSFET? I can't find a place for it on the main PCB?
5. Can you confirm the location of pin P35 on PCB (pinMotorMowRpm)? Is it next to the P20 (Button pin)?
I'm asking because on my PCB it says: "P35 Res Pin 49"!
6. Is it mandatory (do I must do it) to do the Workaround procedure described in WorkaRound20150530 document?
Thank you all in advance!
I would really appreciate your help to get this assembled and started!
Milos
my name is Milos, I come from Bosnia. I am an air traffic controller with a solid knowledge in hardware programming and electronics, and I am trying to build my first Ardumower.
First I would like to thank to all of you who made this great project possible, awesome work!
The biggest problem I find is trying to translate German documents and understand everything correctly.
Let me briefly explain my future Ardumower setup (I will open a separate thread later with all the details):
- The mower will be built from cheaper parts (mostly from China) because I need to keep the cost down.
- The wheel motors are Faurecia worm gear motors from eBay (12V, 17 rpm on output shaft, very powerful, ample amount of torque): link
- The mower motor is Chinese Gindun ZY6812 (24V, 3200 rpm, 80W): link
- The motor drivers are LN298
- The battery is 2 x Lead Acid 7 Ah battery, connected in series (for 24V): link
- The charger will be placed in the charging station together with the perimeter sender. The charger consists of a 30V 3.2A DC power supply which is digitally regulated to 29V 2A for optimal charging. The charging electricity will be transferred to the Ardumower via sliding contacts in the charging station.
I have several questions about the PCB assembly, and I would be grateful if someone could answer them to help me:
1. Can someone explain internal vs external charging? As far as I understand it, external charging is the case when a "smart" external charger is used (a charger which has charging control and balancing built in it), and internal charging is when a "dumb/stupid/simple" charger is used and in that case the PCB does the charging control via relay?
Is this correct? Is the charging that I will use called internal charging?
2. With this battery/charging setup, do I need both INA169 boards (both U5 and U3)?
3. Can someone explain the error near the capacitator network/array?
In your Prototyp Platine document, you say in German: Es müssen an den Arduino Pins 12,13,14,15 die Verbindung zu den Kondensatornetzwerk entfernt werden. Sollte das Kondensatornetzwerk noch nicht eingebaut sein die entsprechenden Beine
einfach bei Seite biegen oder abschneiden. and Google Translate says: It must be removed to connect to the Arduino Pins 12,13,14,15 to the capacitor network. If the capacitor network is not yet installed the corresponding legs just bend or cut off at page.
Can someone please explain this? What needs to be removed, and which pins need to be bent and why?
Also, on page 30 of Prototyp Platine (about odometry error), there is a photo in which four PCB traces are scratched/damaged.
However on my PCB (v1.2), there are five lot pads on those same traces, and they are not connected? What do I need to do with this?
4. Where should I solder the IRLIZ 44N MOSFET? I can't find a place for it on the main PCB?
5. Can you confirm the location of pin P35 on PCB (pinMotorMowRpm)? Is it next to the P20 (Button pin)?
I'm asking because on my PCB it says: "P35 Res Pin 49"!
6. Is it mandatory (do I must do it) to do the Workaround procedure described in WorkaRound20150530 document?
Thank you all in advance!
I would really appreciate your help to get this assembled and started!
Milos