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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)7 P' L- P# e0 I' i* ?! g3 N! B. M
- #include <ESP8266HTTPClient.h>$ A; I# k; i$ n7 l, Y
- #include <ESP8266WiFi.h>1 \( A" W* e" e. d; L- k
- #include <ESP8266WiFiMulti.h>$ J7 k2 M9 a7 L+ N9 k, i) o% u
- #include <ESP8266WebServer.h>: G! D2 Q+ M- Q8 i8 ^
- #include <arduino.h>
7 G, Y4 s8 A; ]* }0 J2 m - ESP8266WiFiMulti WiFiMulti;3 z2 D. p! g* Z) U: H Y; [
- ESP8266WebServer server(80);9 i7 O- U0 S* |1 |3 s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 H; y9 ~8 \' N; h" L - ADC_MODE(ADC_VCC);
7 r6 ^: s. m" r8 e+ X% \ - void setup() {5 A& ^! `" A2 b" F. q% O
- Serial.begin(115200);( C' z7 K. m8 h- D8 e) q
- Serial.print("\r\n\n");
4 H0 P6 H3 a& V2 P7 Q7 z - pinMode(2,OUTPUT);5 ?/ ~8 i2 D9 I
- // WIFI
/ l# a: ^ ^! O - WiFi.mode(WIFI_STA);
8 t) G2 O6 G& x' x; [' N1 Z - WiFi.hostname("Sparkle");- m% x. r0 U }" W5 H+ ^5 j/ k$ I1 F
- WiFiMulti.addAP("wifi ssid", "wifi password");
% b0 O' _( Q; T/ r2 G5 l - int tryNum = 15;. H" r! E, z2 z( N* ?
- Serial.print("Connect WiFi");
, D4 ~4 c5 O) p: n/ V - while (WiFiMulti.run() != WL_CONNECTED) {7 t1 P! ?4 x- J+ [4 S
- digitalWrite(2,0);
8 L; q1 d- d2 N$ l X8 o - delay(200);3 C$ w- L' V+ Y
- digitalWrite(2,1);
+ T1 L( d4 o, W, J* w( s9 I - delay(300);
* `5 w \) I$ ?/ ^9 F. [) q - Serial.print(".");
0 H6 l. g* a& P0 F# q - tryNum--;& \: {, {- c7 e( h; H2 |
- if (tryNum == 0) {
, D0 G4 {. P) t - // 1min
" [3 ^. T$ U" M: R8 i5 m - // ESP.deepSleep(60e6);% S5 ~% @ D0 I+ X4 N5 b3 M
- ESP.deepSleep(0);# `$ m' Y# ^2 K L& A
- }$ L2 f- t; D1 E" m( _1 k. d/ e
- }
: [8 S" U- y9 k. N1 h: p% q: {. v1 U - Serial.print("\r\n");
9 ]0 k, r5 h1 |' W - digitalWrite(2,1);
# P0 A$ }' p, O n - Serial.print("IP address : ");& F4 K9 d$ [% v( i- I" k$ w; D6 [! U
- Serial.println(WiFi.localIP());& i3 z2 U* c8 }4 `- V- M
- server.on("/", HTTP_GET, [](){
' ~: j9 k6 W' I3 l% F2 M" Z1 Q - server.sendHeader("Connection", "close");
/ i9 v# _ k) z - server.send(200, "text/html", serverIndex);
3 @' [5 ]/ \, N6 p* F0 p* |: Q - });' J" ^1 L, Q! P% C8 i$ L- s
- server.on("/update", HTTP_POST, [](){
& |4 v; ] b }/ ~ - server.sendHeader("Connection", "close");6 h: q6 D. h8 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
B, G; R, g5 Z+ @5 f6 n) B - ESP.restart();0 P9 E# H4 e: c' L! h4 x
- },[](){
3 X4 F1 `1 y8 n - HTTPUpload& upload = server.upload();8 l7 {5 Z- t N) b
- if(upload.status == UPLOAD_FILE_START){" C2 ?" [$ K6 C
- Serial.setDebugOutput(true);) K; Y* [& ?5 A* ]8 B
- Serial.printf("Update: %s\n", upload.filename.c_str());
H. s9 A; F4 q9 [2 ~# A6 s8 J! C - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. \/ `/ Y& w0 ~& A; _9 V2 n! Q - if(!Update.begin(maxSketchSpace)){- D$ x2 S6 F- m; T( ^
- Update.printError(Serial);
# r: U) w- J! c - }+ P: p: H/ b1 D
- } else if(upload.status == UPLOAD_FILE_WRITE){
, q# Y" P1 ?5 [1 U& @5 B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) F, {$ ]+ C1 J, ^( T - Update.printError(Serial);
i) w% G. r! g; s% p5 C - }7 x, w6 `6 A v5 s; r0 E5 ]- }: n
- } else if(upload.status == UPLOAD_FILE_END){
, ~! Q: u5 [% A* P - if(Update.end(true)){
& F7 \. o7 L0 l% [- E" X! ~ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ L" ^. [& A5 o3 e/ N' Z - } else {
8 a ?6 m/ s+ H& V - Update.printError(Serial);
$ _7 k8 k1 `7 E - }7 l' z+ ~6 G8 ?$ m
- Serial.setDebugOutput(false);
$ I B- G o3 X9 V - }
, v( d" n: ]" N2 r) G6 @; t" Y - yield();
4 \7 c/ L- h! w( z1 Q8 J - });
I9 S2 E4 i* @ - $ L5 t: z6 j c
- digitalWrite(2,0);
4 T+ G* m% b3 R& N1 j - mainAction();
, A) q' b0 T j& b9 C3 s2 [ - if (digitalRead(0)){9 N9 X4 z- l- K+ n( Z+ E
- ESP.deepSleep(0);
1 V. i ^7 M, f - } else {- {0 O( C: e/ X
- server.begin(); p- P: Y: y" i. }5 [
- } p# f' o- g5 r' m2 |* \4 M* A
- }2 `6 |0 B# l- v4 i! R) I
- void loop() {# K+ B$ c1 B' i8 i
- server.handleClient();
* E' F' S( a. Z4 S6 m8 x - delay(1);
2 G" c0 F8 Z+ d% D - }
' h" w4 B5 a; H7 w! g - String doGet(String url){) b' m8 ^5 x T9 k
- if ((WiFiMulti.run() == WL_CONNECTED)) {- z: _$ c% ?! e
- HTTPClient http;
) ^! s, t$ r7 S- w: j - Serial.println("[HTTP] begin...");
1 Y( X- M6 M3 _. v+ S, L - if (url.startsWith("https")) {& `/ U* h. r! E8 W
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- I# B( H Y+ H6 w6 C - } else {
$ z3 f/ c$ c' t - http.begin(url);
, @1 `/ Z. p! m0 k# V - }5 i) d" y+ x+ X& P; U, i6 j7 G8 C
- Serial.println("[HTTP] GET...");
7 E8 Q! p7 I6 _7 ~ - int httpCode = http.GET();8 y4 C) Q _. Y
- if (httpCode > 0) {
+ V! s% M( X/ A# w" g0 A - Serial.printf("[HTTP] code: %d\n", httpCode);
( x- j+ u, A! [5 E! z - if (httpCode == HTTP_CODE_OK) {
8 \& q6 q$ D" z/ x$ r1 n- R H* b* r - String payload = http.getString();; g0 F) B0 o" l9 U5 D
- Serial.println(payload);% z( b: `/ @3 A/ ~- F
- Serial.print("\r\n");
- H" G8 f0 U! r8 @# A, M' G/ ? - return payload;( P ^" S8 i2 t! P* b. A
- }) {& J% g5 R/ L# u% `
- } else {
( c+ b( R5 h" Q' ?. ]: ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ X: o. w; j7 R8 v+ }* i - http.errorToString(httpCode).c_str());
- d' Q5 K- B$ r, D7 I# h$ ?" N - }
* ` X/ T5 x, d - http.end();6 v4 s+ R9 u& g
- return "";& S$ H, ]+ |% r- O+ V/ Y" z
- }9 T# I& n; l$ j M9 T% C' F: u7 o
- }3 z! g9 r: L7 U B0 e6 k
- void mainAction() { f u: V& j. N* ~# t
- // 发送请求( n7 J$ D9 O7 q
- doGet("http://google.cn");
; f5 U+ m4 N Y; {/ H6 I5 M - }3 g% U( `7 L. W/ z- E8 e4 o
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