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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)
! I0 a+ a2 f1 N6 {( u% L' H- #include <ESP8266HTTPClient.h>
+ N$ p( E6 Y# E8 \/ @ - #include <ESP8266WiFi.h>$ T% z3 d; q9 |4 B
- #include <ESP8266WiFiMulti.h>3 Y Y0 x7 K- N4 S- Y
- #include <ESP8266WebServer.h>
1 c! A* O; {5 {, g - #include <arduino.h>
* E; j' ], J' B4 b }0 s - ESP8266WiFiMulti WiFiMulti;5 Y# q+ U# k! V% f9 m
- ESP8266WebServer server(80);
3 h+ q3 v; \- s" ^( ^8 c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& _6 I: k* y7 S& e! k8 `- h
- ADC_MODE(ADC_VCC);
2 v/ J, S4 Y# W0 ] ^ - void setup() {
" c4 [/ e2 r) J - Serial.begin(115200);/ N; _$ P% T. x% f2 |1 o
- Serial.print("\r\n\n");& m; c c5 y$ @+ A7 D
- pinMode(2,OUTPUT);
( \4 N6 T; e4 Z5 e2 R - // WIFI' g. V3 |! u6 w! J$ P* u
- WiFi.mode(WIFI_STA);
' ?7 V# Q& R+ W! z% B - WiFi.hostname("Sparkle");
. I! ]! T+ A) a1 ]$ S# y; h - WiFiMulti.addAP("wifi ssid", "wifi password");
) ^3 k& r) P: j( R - int tryNum = 15;
- m1 A6 r! F+ s0 `6 Y" S; o7 k; r - Serial.print("Connect WiFi");$ m0 V& A: L8 X2 b* _7 p. M2 d
- while (WiFiMulti.run() != WL_CONNECTED) {
+ f/ F: I1 W& q M9 g, g0 K - digitalWrite(2,0);
, {/ t, r5 ~/ D - delay(200);* m9 k c7 u7 e
- digitalWrite(2,1);% X; ~" ^1 n* q/ k5 E
- delay(300);
. E' i) W% g* e' D' d. d; N9 j$ R - Serial.print(".");5 S# t2 O. B: s* D# k; e
- tryNum--;
( z8 v( z! M* a' N! ~! d$ y% ] - if (tryNum == 0) {1 Q" b# ?8 E u9 l
- // 1min3 ^3 Q5 S2 l6 C! `
- // ESP.deepSleep(60e6);' \8 ]* t6 {4 e3 n( F6 Q
- ESP.deepSleep(0);
$ I; U3 f0 c5 g) ~, Y ? - }
$ o0 @8 E, ?, ?; [ - }
, ~0 C+ l% G5 h" X+ C' |% Y - Serial.print("\r\n");+ z% e* i. t! |5 a- h) R$ b) w
- digitalWrite(2,1);( d7 f" n% d% a L6 [& j8 x+ A' ]
- Serial.print("IP address : ");* ]+ K7 {" J! e" m6 y, c
- Serial.println(WiFi.localIP());5 A( H- a. B; O$ k& n
- server.on("/", HTTP_GET, [](){
( U# G, |# _# V' X) Q' N - server.sendHeader("Connection", "close");8 n) ~; `4 u j r1 w0 f4 t( W
- server.send(200, "text/html", serverIndex);$ c. Q. P" }* m% f* _9 K2 P
- });* {& O. P5 s0 {* T( m Z. e6 M
- server.on("/update", HTTP_POST, [](){
9 [8 l$ K4 d) H- C - server.sendHeader("Connection", "close");/ G! [2 v- V- k( m3 P6 O! l
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, P: V* M: f) G# Q* R! ^9 `! P - ESP.restart();# S: y! V& _: o6 L
- },[](){# W3 n6 h0 E) ~( L) Y0 |/ @
- HTTPUpload& upload = server.upload();; N4 b3 Z6 v- _" s: Q1 _9 O+ L2 p5 Q
- if(upload.status == UPLOAD_FILE_START){ M9 q# p( L5 L; b! q8 I
- Serial.setDebugOutput(true);( }0 c+ z" ^7 T- Y5 u! l
- Serial.printf("Update: %s\n", upload.filename.c_str());7 g* u8 y* q- t$ z% N8 b& k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. o' |* o1 d4 K$ i8 F7 d - if(!Update.begin(maxSketchSpace)){$ o/ x% x; J$ w7 ?5 D2 [5 M
- Update.printError(Serial);0 B5 g- l8 |- {3 L$ x* K
- }
4 W! m$ W. Q; y$ A2 | - } else if(upload.status == UPLOAD_FILE_WRITE){
# z8 J& Q k, @1 k+ e* p: ] H* l - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ T: U) `- s% m- v" a- \: S - Update.printError(Serial);$ f7 P8 z) @" b) F4 X9 p* r& J
- }
! w/ L4 b: L# k7 k6 e - } else if(upload.status == UPLOAD_FILE_END){
2 F7 @! f( m3 ], ^& S - if(Update.end(true)){- V- N6 o7 I2 J; J5 ^; b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 v- a/ f5 m2 z6 B4 E - } else {
; K7 c$ k; Z$ P) Y0 x$ ]4 F$ H - Update.printError(Serial);
# ]' n7 N5 X, h( r/ |: u5 W - }2 Y4 P4 F# Y0 F9 N
- Serial.setDebugOutput(false);$ ^8 W* f% ]8 o9 o0 x! J0 u* Q
- }
- o4 `. E9 k N& Q9 ? v# t - yield();
; b7 }: e) r' v# i( ~0 h4 i) n& H - });0 [- u6 ^7 b% ]+ A* o' \
- , L& q) M E, c6 t
- digitalWrite(2,0);1 f. n! w: Y' c$ h/ M
- mainAction();
4 }+ J3 l: e& A: e9 \3 m2 P V - if (digitalRead(0)){
) k2 Y7 c5 w6 f* h3 a - ESP.deepSleep(0);
) A1 ^. ?' F, ? - } else {
" Z8 u: x8 z6 f- `4 N2 B - server.begin();
$ ` I$ D _! p/ x% M4 \" t - }
4 E* O" ^+ z+ }' z N - }# b+ ?9 C9 T8 P# E5 \5 @
- void loop() {, @) v% a& }( k* H. U) p# O( O
- server.handleClient();) w+ h* K5 Z2 Y5 @) f
- delay(1);# T: Q* v: U. A( @2 k
- }
# V* N. o4 }4 E# W/ U$ U - String doGet(String url){
9 s# e0 R* a4 o( Z - if ((WiFiMulti.run() == WL_CONNECTED)) {
' ]# U5 s5 }7 I - HTTPClient http;
& f" K9 M* `6 H2 H; ?6 X s7 D - Serial.println("[HTTP] begin...");$ Q' U8 x9 I% Z: q7 ]6 ~9 Q
- if (url.startsWith("https")) {" K9 U% ~# g/ F- _0 L G; D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 `! p& M ~: h
- } else {. M9 S* m9 K/ m
- http.begin(url);8 G/ Q. Y7 d( f6 K4 V7 J
- }. N7 @/ b6 P. [; j4 y. a9 O4 T
- Serial.println("[HTTP] GET...");0 R; e% h" e7 F+ t" Q/ j) h: S
- int httpCode = http.GET();& F: R2 U, o8 k* B% {
- if (httpCode > 0) {, M" E- ^2 E: R# F$ k' y9 N8 l
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ L+ J. N, D1 t% n( y( y - if (httpCode == HTTP_CODE_OK) {5 u2 y# ]$ C8 H, g- `
- String payload = http.getString();9 J3 X8 K1 a& c5 M! f9 Z4 t+ [
- Serial.println(payload);( d! }+ @' r7 U; Q
- Serial.print("\r\n");
% u: X2 U0 r: H) j( v9 n6 ?9 g& b9 U' V - return payload;
' H% s$ T `# x- e - }% L4 z9 `: l8 R- b
- } else {
- t& Q H, n, r" I0 G - Serial.printf("[HTTP] GET... failed, error: %s\n",
5 F4 j* Y+ L2 T- e - http.errorToString(httpCode).c_str());
+ Y$ q( R: l% T% }4 f1 d. | - }8 T" n" ]6 T8 E+ a& a E7 y6 K5 i
- http.end();# X" ^- u7 q& V7 s0 P5 a
- return "";
7 ?/ u) D$ T! Z3 b: J8 T% b3 X - }6 g9 E/ w) B5 p
- }; ~5 a; L4 Y( e* c
- void mainAction() {
# a9 R" J9 N8 U" E4 H" g - // 发送请求0 D; i4 h7 Y4 {- k/ g Z* z
- doGet("http://google.cn");. ]' h/ {! O, f; H* f. E
- }
1 p; a+ O. U3 }+ q% g" `
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