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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)& \ s* n. V5 h W: D* n3 L g0 I% b/ ?: u
- #include <ESP8266HTTPClient.h>5 g& `& A, I9 C8 C$ u
- #include <ESP8266WiFi.h>
+ M7 w8 y* P3 ] - #include <ESP8266WiFiMulti.h>4 ?# z* g3 h/ z5 m' F' F8 V" K
- #include <ESP8266WebServer.h>' f# V& u4 c8 h4 L
- #include <arduino.h>) L4 J: u, f. z1 l7 i. o; y
- ESP8266WiFiMulti WiFiMulti;
' I1 N7 f" N) h b6 G6 t - ESP8266WebServer server(80);3 o( ?8 {6 F6 T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 b$ X9 S2 K8 \ - ADC_MODE(ADC_VCC);
; F. U5 F6 k9 [0 g, g# ? - void setup() {
/ D" d+ P; s/ ?: T- p% t& E - Serial.begin(115200);' U. z8 Z3 `; N+ b: {8 ]
- Serial.print("\r\n\n");
; S4 T) e% O% G, t' M; j, a* J - pinMode(2,OUTPUT);7 L" v: k. k! o% T
- // WIFI: y: m: Y6 h$ B6 P: v( o
- WiFi.mode(WIFI_STA);: z9 Z4 N+ R5 b$ y7 ~ R0 x
- WiFi.hostname("Sparkle");" S3 {4 B3 O6 }& f0 k4 f% W
- WiFiMulti.addAP("wifi ssid", "wifi password");
; o5 F6 Z8 H" x% i) t - int tryNum = 15;9 g T& W; B) O' Z3 e y
- Serial.print("Connect WiFi");" O$ e0 ?" U3 F
- while (WiFiMulti.run() != WL_CONNECTED) {
8 X: g* s" {0 M% b8 V( s - digitalWrite(2,0);* R$ Y7 j, u5 w& p7 c9 R$ G) n2 o* A6 L
- delay(200);
$ j. X8 n: C) |( n r# e. { - digitalWrite(2,1);
4 R, L+ @4 X. B - delay(300);
8 M: k" c. A5 e9 `% C - Serial.print(".");
8 h/ S) x8 v: ~2 i: ]4 V; B, t/ \/ F5 q - tryNum--;& C2 Q& ^% ]+ a! l7 ~/ {) O
- if (tryNum == 0) {8 B" ^) R5 V( U" }
- // 1min* w/ c' P9 `5 g
- // ESP.deepSleep(60e6);
+ Z! K# f0 M& w! t/ d- Y; h- w g - ESP.deepSleep(0);4 k: F+ d. v6 ?& l9 g/ h1 M/ f
- }
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- Serial.print("\r\n");: V: x- D8 D6 z; {' i Q& q
- digitalWrite(2,1);. ^7 M2 t9 w& Y0 K
- Serial.print("IP address : ");( R# t1 o S9 |7 D: C/ l8 c) W* r$ I
- Serial.println(WiFi.localIP());
" o5 g1 |$ C$ q) G7 {) v - server.on("/", HTTP_GET, [](){) \9 \! Q& e2 ?/ |) h7 F% x
- server.sendHeader("Connection", "close");
5 B7 r% P; P2 t* S, E - server.send(200, "text/html", serverIndex);
0 k4 s% S# _: z0 I% ]# _ - });1 w2 W0 M H/ e( k- ~
- server.on("/update", HTTP_POST, [](){
1 [: C2 ~$ x+ ?) V+ c+ X - server.sendHeader("Connection", "close");
9 e' F( U6 Q$ I- ]% ~" q* S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
; q6 N9 }) K/ ?$ q; a3 L$ T - ESP.restart();
9 Q6 v1 ^0 g4 d" }! N& f - },[](){
) }1 e, V; @9 x; M% A - HTTPUpload& upload = server.upload();
2 _/ a3 [& p p2 Z - if(upload.status == UPLOAD_FILE_START){
7 b8 Q" l/ U# Q' {' \ - Serial.setDebugOutput(true);
9 J5 S% W; i6 ~. J6 |6 N1 r - Serial.printf("Update: %s\n", upload.filename.c_str());
& \. t; t4 T) L9 V - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. v6 y' r- e- a1 o
- if(!Update.begin(maxSketchSpace)){( V3 A' [0 u* z1 L* o$ \# b8 J9 R/ `
- Update.printError(Serial);- @$ D J1 ^" u7 I8 e' Y
- }
( E3 Q- a- t2 M. n - } else if(upload.status == UPLOAD_FILE_WRITE){ x$ y$ n6 b9 K$ e1 \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( z A8 H; x7 M - Update.printError(Serial);9 K4 Q+ U8 a2 B4 ^4 p
- }# L% X$ l* X2 E: k; J! R
- } else if(upload.status == UPLOAD_FILE_END){8 s p( R' ]; H: `5 T$ d4 }0 G
- if(Update.end(true)){
# m# v8 _0 L! W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) }7 F: D. u- N4 q: j
- } else {
& W+ T0 Z+ m( h - Update.printError(Serial);3 e" q1 q) G. `8 M0 e( J& w
- }
( r3 z* Y- G8 P% u, i - Serial.setDebugOutput(false);! M7 v; X, a* a
- }
+ S" r7 `% K/ l1 G% A - yield();$ n" F1 k1 C# S9 n/ h" o; N
- });
+ R2 e3 R2 o+ M0 O -
; D4 a! f, ]6 X$ {1 y7 N - digitalWrite(2,0);
5 ]0 Y$ u1 Y" k# @' z" [. G) } - mainAction();
& m& o: s7 I, p: ~7 u - if (digitalRead(0)){
1 E! a2 Q% p5 S! E - ESP.deepSleep(0);
0 K+ D; U0 s' p* J. G( i1 S; m - } else {8 _& S! o, ^$ }: b: m
- server.begin();
, o( {0 p# B4 B3 ?. u; R, [. a% @+ f - }+ s1 c1 q2 p. R
- }
8 y+ m3 j5 O- X; h - void loop() {
, T3 o. v$ [6 g y0 g; @ - server.handleClient();
S% k" b) h: S0 m7 Y7 t5 d( G - delay(1);6 R3 w. W; G) L- e, _7 r
- }6 ^" B1 K8 V/ c- L
- String doGet(String url){
2 N0 d! D) R9 J2 Z! W C1 J - if ((WiFiMulti.run() == WL_CONNECTED)) {) l/ _, m& O4 E& P6 C: Z
- HTTPClient http;6 P" A- [" |" w0 w8 K `3 |* ^/ g! {9 y
- Serial.println("[HTTP] begin...");6 C8 S6 y f6 {- s9 R! M
- if (url.startsWith("https")) {3 e8 C+ h. M! q0 f! d! u
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# s2 ~; e/ U3 y& S+ W' r" n- R - } else {
' v. Y& d/ O3 P5 W7 V - http.begin(url);+ z& n. ^1 w9 h; L# f% e
- }
; W( Z" o G8 p/ x% i/ v - Serial.println("[HTTP] GET...");
/ G+ u3 O* s1 l* s6 A+ D0 c" t - int httpCode = http.GET();
. r" P9 \% o' }+ k - if (httpCode > 0) {, ]( J4 o0 p3 }
- Serial.printf("[HTTP] code: %d\n", httpCode);% d' w+ ?( Q6 \- \( j
- if (httpCode == HTTP_CODE_OK) {' q. M, I" g4 |
- String payload = http.getString();- Y- @4 [. a4 u5 c0 f* V% J
- Serial.println(payload);
* f1 y4 g! \5 A. d - Serial.print("\r\n");
5 V; \9 K4 O8 e" M$ b" c8 R - return payload;4 F% i. \5 \% [! e
- }
: @: A: p6 L' X, s( K' n - } else {9 m& i7 H3 v4 X, s
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 V, ?$ s7 K9 h: A; z8 Z9 ]' B3 _ - http.errorToString(httpCode).c_str());- O: ?1 H* _7 J) |3 }9 U
- }" o/ _2 N( o$ p# n& o
- http.end();2 q+ T1 ]7 R$ Z* Y$ K
- return "";- h }, o" C7 r
- }
" Y1 q6 X0 q" ` - }! j5 G' `8 e/ c% y& w3 W
- void mainAction() {
9 X5 u% s2 N L; ?% ] - // 发送请求, z9 x1 \* ?7 c0 `0 f$ J, `2 a7 q
- doGet("http://google.cn");; O, c: Y3 e! u; B) l
- }
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