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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)
0 J7 R K/ ~% N$ D8 V- #include <ESP8266HTTPClient.h>: `( U$ s9 i9 z5 a, q
- #include <ESP8266WiFi.h>
0 k6 [5 x$ `( k6 f - #include <ESP8266WiFiMulti.h>0 X d' k4 E1 F! f6 y
- #include <ESP8266WebServer.h>8 S; X q+ m, |; T9 S& _/ ^
- #include <arduino.h>
3 b) \& f: u$ ^0 Q; G: F - ESP8266WiFiMulti WiFiMulti;' O9 B1 R, G. E7 W: D# \
- ESP8266WebServer server(80);- r2 m" _( t# o/ a. W( P( s/ h' x
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 w2 H* z! Y( D6 H' U2 F+ L8 v
- ADC_MODE(ADC_VCC);
8 W4 T- N* n, N. E, I - void setup() {9 t. |. J( y. I. q9 o7 f! A! U
- Serial.begin(115200);( V" ]: n+ d2 o# i' `
- Serial.print("\r\n\n");- k: Y/ x6 v5 H+ S. ~
- pinMode(2,OUTPUT);
/ T' A* y- s- ?( X( n - // WIFI0 ~& I$ r- N5 B
- WiFi.mode(WIFI_STA);
8 m* V/ p- ^" u' K7 x - WiFi.hostname("Sparkle");9 e9 @! @' E. |0 x
- WiFiMulti.addAP("wifi ssid", "wifi password");
, Q" G, I3 X' `" j - int tryNum = 15;9 d3 k' G) h6 p" t
- Serial.print("Connect WiFi");
1 k! [2 Z0 g/ r+ c( w/ I - while (WiFiMulti.run() != WL_CONNECTED) {0 e% S3 [- F2 _3 i! D7 r. v
- digitalWrite(2,0);
7 h+ z% P% h! F3 P3 q - delay(200);
6 y5 H1 m9 ^6 H- \1 A - digitalWrite(2,1);
* E" [/ C2 u1 O _ - delay(300);' a( a# R7 M! q" G ]
- Serial.print(".");3 H0 i5 ~5 Z2 V9 S# d
- tryNum--;
/ L, V9 S s4 K9 s- x b% u1 X - if (tryNum == 0) {
- _* \* ^2 B; A2 u% t# ` - // 1min9 N( @+ @4 J" s" ~9 ^/ U
- // ESP.deepSleep(60e6);
$ b0 K+ i& \3 G5 C5 H - ESP.deepSleep(0);
0 x& }0 b2 |! ?; x: c( c8 N6 C - }* m) r- d) {) H9 T
- }0 C+ w7 P1 f9 @3 l! l
- Serial.print("\r\n");
% ~7 _ |4 h* L - digitalWrite(2,1);
0 [2 u, z# e( ? - Serial.print("IP address : ");
9 c0 u" r2 u% O7 n7 G) c2 J1 A - Serial.println(WiFi.localIP());; L; o+ N( h. _9 F" C% K+ P
- server.on("/", HTTP_GET, [](){$ o- O( O, ~' v) w0 `, s
- server.sendHeader("Connection", "close");
- o: G L6 i' m/ N - server.send(200, "text/html", serverIndex);
8 [( k" v. T4 k: N2 ` - });
6 ]$ m9 T6 J8 d1 { - server.on("/update", HTTP_POST, [](){
' k e* |7 @$ z, j3 S) `8 ]$ E - server.sendHeader("Connection", "close");
1 O6 \" R F! d1 q2 Z, E! y i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 ^4 j* X& p& J+ R
- ESP.restart();) p- W7 B5 U! J# j7 K: Q* h/ t! s
- },[](){
" S2 c7 C& f" P9 ^; I v - HTTPUpload& upload = server.upload();; l, S5 D3 O$ e8 H5 S& K* R
- if(upload.status == UPLOAD_FILE_START){9 |' ]* c: _& Z( j; ^$ o
- Serial.setDebugOutput(true);" k, [# h1 r3 |; j
- Serial.printf("Update: %s\n", upload.filename.c_str());
' z( x- H; N1 ]$ `! Y8 Z% I* P - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 O+ S) @. F" U2 j. i" u8 S/ m - if(!Update.begin(maxSketchSpace)){/ n1 p+ Y$ m$ x& z
- Update.printError(Serial);
' I9 d% a; y" X* H9 }/ o - }7 I9 B9 J- L5 ~4 _! G" |
- } else if(upload.status == UPLOAD_FILE_WRITE){' g$ y0 _5 I1 S% i0 U D
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) G$ F& b& d+ N1 x2 v
- Update.printError(Serial);
# H- y- W D" ]: q0 p! k$ s9 m - }
1 ?3 J- e& E8 N6 H& U) t9 c/ A - } else if(upload.status == UPLOAD_FILE_END){
* ?! i2 w4 i5 L' f) s0 l& D$ j - if(Update.end(true)){
0 ]7 U- Q% k# G3 n) e7 B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, b# N* @+ c- V1 E) P - } else {
0 Y4 `3 O8 |3 i" L - Update.printError(Serial);; _& P2 |% J1 ]' v" g1 ~% \
- }( A# G0 x) H. Y9 L( |" t; \
- Serial.setDebugOutput(false);5 k& h6 u8 w# k/ ~4 F3 z
- }/ a1 o2 c* ?, v& K
- yield();
! Z4 I1 B' |8 @ - });. w/ t1 b' g( {+ {4 K
-
! N# ~4 J) T1 X2 ^: ] B1 m - digitalWrite(2,0);3 ^. q5 q: `& e- w
- mainAction();
% ]$ C; ^. y. E: a5 o( v - if (digitalRead(0)){
* u" h( [% d8 k x - ESP.deepSleep(0);9 W. r% K7 s" m0 r8 [4 [2 ], v
- } else {+ U8 ^- z1 F. z) r, m2 |% W
- server.begin();1 o) t! Z: H9 ^5 R: N. }& L
- }% N9 s) w4 {4 @& j/ D/ N* Q; s7 g
- }
/ @) v4 C) \/ }9 d6 @ - void loop() {9 x& u9 M- f. U a! A
- server.handleClient();
* ?; W. P- E6 _+ d" m( | - delay(1);2 M* q7 Y( u2 @( ], Z
- }
5 M$ T$ K8 x& c: B: B- q) [ - String doGet(String url){
4 ~' ^: e# C/ j5 W; B - if ((WiFiMulti.run() == WL_CONNECTED)) {1 k" i0 B, \" c/ H* Z, u
- HTTPClient http;
3 a$ g! n1 G+ }% ?: h% ~4 c - Serial.println("[HTTP] begin...");! o( @+ \* K1 A3 X
- if (url.startsWith("https")) {
0 y! S; _; X5 e# _7 a, c% p* F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 Q' e; A2 Z+ [) Y; P c6 B. b - } else {
2 n9 ~) w& P0 R9 x( @9 N3 G& p4 H& A - http.begin(url);* d: q( Z8 Q# E9 T" m
- }: |. L$ e2 {9 i' _. o9 k+ E P7 y) R
- Serial.println("[HTTP] GET...");7 P5 X. K$ g$ w, }8 _
- int httpCode = http.GET();
+ D5 n$ S/ m3 S5 [* @/ l* W% D - if (httpCode > 0) {0 ~3 q0 t! t# S6 y( q/ v
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ E# N; d4 r$ c" D - if (httpCode == HTTP_CODE_OK) {6 K+ t) x) |0 p3 k9 T
- String payload = http.getString();
o7 ?0 O3 x& d7 N; o - Serial.println(payload);
, b& T; ~, P$ o8 F - Serial.print("\r\n");
- R" F$ R# y7 r x- e - return payload;& l& |6 G* S/ d' {9 z4 N6 ^* ~/ c
- }
& J4 b( i' v$ @4 w/ F& p) Y' H - } else {9 q! l1 T& w& q0 I* X: Z# J
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ m" `* a5 y, {5 c% F1 h
- http.errorToString(httpCode).c_str());
i8 C+ X4 ?2 b& Y" R - }* ~5 z; i' M7 L& t, X
- http.end();; d& C( A8 |: O7 Z: x$ k
- return "";
% o. [7 ]1 R, v7 W3 L - }
* m. X" G2 X% A( z/ d - }
& F+ `9 w) x! u& X* X0 O n5 g8 D - void mainAction() {
2 |+ Q0 Q. }1 P; H S4 s7 p - // 发送请求
8 `! V' M9 Z/ Z$ O; D2 n - doGet("http://google.cn");
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