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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)& h4 r. Q& z6 A% n& N2 H
- #include <ESP8266HTTPClient.h>
$ L. B& \. X$ w' O8 y9 [# Q9 j7 f - #include <ESP8266WiFi.h>5 o1 j: Q; w2 Y
- #include <ESP8266WiFiMulti.h>+ b1 h) s/ A p1 X' P
- #include <ESP8266WebServer.h>
# d( Y/ F9 G" ~ - #include <arduino.h>
[+ X7 y; x9 Z: m, v8 r - ESP8266WiFiMulti WiFiMulti;
+ n S% {* ~+ D1 n" \& E - ESP8266WebServer server(80);. N. O; J0 D% R9 G" H( B. p# j( T7 j% J: o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ F0 o( c( M; B7 K2 [
- ADC_MODE(ADC_VCC);. N; h5 t) Y- n% ~8 w
- void setup() {
( `$ o' ~8 H7 x8 i - Serial.begin(115200);
' g% W! f/ K- {# S! g5 c; t; R - Serial.print("\r\n\n");
% X& Y2 b6 G; f( E) r - pinMode(2,OUTPUT);8 t4 T$ c9 V6 y
- // WIFI' s; m, ?6 k: `* F/ f7 l) O( W
- WiFi.mode(WIFI_STA);
. N/ s! q2 B' g% u0 \% P' U# F* M - WiFi.hostname("Sparkle");
) P( b" V1 G4 Y% B9 `' `: J! K - WiFiMulti.addAP("wifi ssid", "wifi password");
: M' x3 B: m) s - int tryNum = 15;/ ]4 Q$ k0 o# \9 p# p' B
- Serial.print("Connect WiFi");
1 ?4 ^* B0 g. _' g2 A - while (WiFiMulti.run() != WL_CONNECTED) {( H- G# o" V& A/ y2 I' _6 h
- digitalWrite(2,0);
, h, I. \, F7 k% |& { - delay(200);) C8 g$ Q: w8 Y& |0 N9 m6 E0 C
- digitalWrite(2,1);, ?2 r7 i/ r( @
- delay(300);- N5 L/ M2 B( n/ }) O
- Serial.print(".");/ m2 f& l. R2 g* c
- tryNum--;5 `1 ~/ N* H2 X5 I* j, U/ D$ M
- if (tryNum == 0) {
' B# N( c5 \1 p' }6 W - // 1min" A1 T; f- s6 X ~& p8 e- l# E
- // ESP.deepSleep(60e6);; z1 t0 M. @# ^, \
- ESP.deepSleep(0);, [ V+ m0 e* H: J
- }, \' q1 ~/ `) f0 D2 T4 j/ K- u
- }
`# }- i1 c9 Y% f - Serial.print("\r\n");- ]! K$ u- f1 G4 l
- digitalWrite(2,1);
+ ~- d9 V! f' w - Serial.print("IP address : ");
E8 g, ^+ Y. t( }" r - Serial.println(WiFi.localIP());
! f5 o- }- Z1 e. w" U' b6 | - server.on("/", HTTP_GET, [](){/ U1 |9 ?- {1 ?0 s, A. p1 K* m
- server.sendHeader("Connection", "close");
+ ?9 ]; R! U0 Y/ _# x! x& P, N - server.send(200, "text/html", serverIndex);0 _/ I0 z( c4 x% Q
- });6 F# `# i% ^# @% l- y9 F% K/ `8 c
- server.on("/update", HTTP_POST, [](){9 p0 j3 A7 a: `, {
- server.sendHeader("Connection", "close");3 V- X3 W6 Q* b) \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) p; s, Z! T8 [2 N9 C& Q - ESP.restart();2 d( i, ~1 g: ?0 G0 o
- },[](){
/ d3 {$ a; X2 @9 ?1 Y' } - HTTPUpload& upload = server.upload();0 ?7 a2 b6 ]& z& P$ \& L3 C
- if(upload.status == UPLOAD_FILE_START){9 `; Z o+ Z* k' L7 W7 |
- Serial.setDebugOutput(true);6 n; c5 }8 I2 i" b* o
- Serial.printf("Update: %s\n", upload.filename.c_str());
9 g3 h: Q5 m7 P/ W, s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 u7 A# d! J, q4 C
- if(!Update.begin(maxSketchSpace)){, T6 m' ]5 ]3 A( G. {3 n/ F
- Update.printError(Serial);
. L& v, S9 {6 t2 r2 ] - }
8 w; b) U. k' H6 y# R$ V - } else if(upload.status == UPLOAD_FILE_WRITE){
: E8 |# _ m3 _# x8 L4 Z/ S - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 p8 R0 g5 }8 o* F
- Update.printError(Serial);
: s* v9 p. Z g - }: [' e* e" A f. z4 T N
- } else if(upload.status == UPLOAD_FILE_END){
% ~7 X! {9 I+ b7 x% T9 Z - if(Update.end(true)){
5 i+ o0 v, z6 C9 | R6 A X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 \; j- |" `1 O+ D( Y# h - } else {5 h8 p, o/ I: l. j
- Update.printError(Serial);
9 k0 S. h5 F+ _2 x; i - }0 o; H& g3 d' W k
- Serial.setDebugOutput(false);
1 o4 z5 t/ T7 O# |9 E/ A - }
1 L! ]" i3 |& y7 |0 d" M. A - yield();
1 g. D2 w: O0 q - });
2 K1 @7 R* Z* H& C$ ^ - ( w: w e0 u$ E4 |4 q7 W
- digitalWrite(2,0);
( H4 V/ c+ p% W2 V6 q - mainAction();# f- a# n4 i# w, n7 K
- if (digitalRead(0)){ ^. \8 c/ s8 O1 g
- ESP.deepSleep(0);# F1 q* H: L9 {: Y" |( o
- } else {& a9 z* [8 n& Z8 p
- server.begin();5 ?' J" R! { |0 V
- }7 g7 [' a) y( K
- }
3 v3 P- S! ^! b, ]6 c* ?' a. Y - void loop() {9 Z/ `# c7 t3 ]4 F7 G2 e- c& B
- server.handleClient();4 @3 N* W6 }: @) A" e3 a) H: C
- delay(1);3 H9 t$ V- Y( h
- }5 C+ G8 ?, G" T$ y! e: ?# G) x
- String doGet(String url){0 ?' ~! G* ?6 M; q6 @- H4 x
- if ((WiFiMulti.run() == WL_CONNECTED)) {, R3 U2 Z) d& p$ p+ v& J
- HTTPClient http;& F# q P2 h/ f/ h" M X
- Serial.println("[HTTP] begin...");
! n' _. T( P4 H! J - if (url.startsWith("https")) {
( ? b ~. `. x1 D" f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 x7 p4 @7 f, N* j5 U/ W
- } else {
$ x0 C# }7 A7 m3 o2 W+ J# I - http.begin(url);+ K% i# s' w; y3 w) G
- }4 R q6 C5 g* V% D8 m" t: A
- Serial.println("[HTTP] GET...");
; ], x6 ]% N1 I: V - int httpCode = http.GET();
" V( x/ t7 {% d& C! r: S - if (httpCode > 0) {
0 H; X1 c+ @" u8 ]' @6 ] - Serial.printf("[HTTP] code: %d\n", httpCode);
- U9 m& w/ q: Y* s - if (httpCode == HTTP_CODE_OK) {8 ?. y# n1 w* s/ ^
- String payload = http.getString();* u" L8 l- X$ `1 H' d, j G3 G
- Serial.println(payload);$ P+ H) h9 W$ p, `
- Serial.print("\r\n");1 h; F8 r% d. K" f0 j/ j
- return payload;
; t9 ]4 f. `6 @. Z9 H - }
9 b# [# L% h/ ~3 n - } else {8 _: z4 Y1 R* x% ]. n+ @
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% a6 E2 Q: Z( j9 D- q( T - http.errorToString(httpCode).c_str());" n- M" K' c* P( q' V
- }* t: @ k8 o! y- Q) E: h
- http.end();
" w7 ~4 ~: ?! o' t7 j7 z2 @3 f - return "";
( ?$ \( [0 a1 ^* B( |: @, y e - }! o8 c2 B4 Y* O- Z. U
- }: E `' Q% P4 g/ c0 C
- void mainAction() {
) g, }: e8 ?; C" V) g - // 发送请求
T9 ^% B- N* z. L, L0 Q - doGet("http://google.cn");
8 x( S# H/ C/ C# f1 ^ - }
2 V X+ q1 d$ a& Q3 x
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