Collect and label images
Capture representative frames from the target camera and environment, label classes, and split into train/validation/test sets ensuring diversity of lighting and angle.
TinyML image classification. Consider latency and memory.
TinyML image classification fits compact neural networks to camera frames so they can run with limited RAM, flash and CPU on microcontrollers. Key challenges include dataset representativeness, quantisation effects, power and latency budgets, class imbalance and robustness to lighting and viewpoint changes.
Learning concept · Not a validated service
TinyML image classification fits compact neural networks to camera frames so they can run with limited RAM, flash and CPU on microcontrollers. Key challenges include dataset representativeness, quantisation effects, power and latency budgets, class imbalance and robustness to lighting and viewpoint changes.
A proposed application: run a small classifier on a battery-powered camera to detect a few object classes (door open/closed, package present, person/no-person) and send low-bandwidth alerts. Any deployment must keep a human in the loop for critical decisions and require field testing before reliance.
Capture representative frames from the target camera and environment, label classes, and split into train/validation/test sets ensuring diversity of lighting and angle.
Train a small convolutional network or MobileNet-lite variant on the training set and track accuracy and per-class errors on validation data.
Convert the model to TensorFlow Lite, apply post-training quantisation, and measure latency, RAM and flash usage on the actual microcontroller or an accurate emulator.
Prune or quantise further to meet resource budgets, add fallback logic for low-confidence outputs, and instrument monitoring for drift and missing inputs.
The supplied starter implements an A* pathfinding planner on a small text grid: it finds 'S' and 'G' positions, runs a heuristic search over walkable cells and prints a planned path and its length. It does not load image data, train a model, convert to TFLite, or measure device metrics.
while frontier:
_, current = heapq.heappop(frontier)
if current == goal:
break
for nxt in neighbors(current):
new_cost = cost_so_far[current] + 1
if nxt not in cost_so_far or new_cost < cost_so_far[nxt]:
cost_so_far[nxt] = new_cost
priority = new_cost + heuristic(nxt, goal)
heapq.heappush(frontier, (priority, nxt))The starter contains only a grid-based pathfinding example (A* search) and no image processing, dataset loading, model definition, training loop or TFLite conversion. It therefore cannot demonstrate any tinyML image-classification behaviour or device measurements.
A proposed extension is to collect target-device camera frames for 3–5 classes, train a small convnet on-device-like inputs, convert to TFLite with int8 quantisation, deploy to the microcontroller, and log inference latency, RAM and flash to validate operational constraints.
This is a potential application pathway, not a delivered product. The supplied starter does not implement this service or validate it with real users.
Networkers Home runs this topic inside its Network Engineering Course, with placement support and hands-on labs.