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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)
6 F$ y! X$ S: |1 ~' J- #include <ESP8266HTTPClient.h>
V1 V( n6 h1 v, K) d - #include <ESP8266WiFi.h>, B/ T( y1 f2 G. z
- #include <ESP8266WiFiMulti.h>$ Z& U: @9 B3 j! z' g+ I/ _! w8 P: L. U/ C
- #include <ESP8266WebServer.h>
1 o: z# E" p! M - #include <arduino.h>& V& Y5 O! z" ^
- ESP8266WiFiMulti WiFiMulti;
7 C4 a9 S" `$ j2 Z" V - ESP8266WebServer server(80); X# F d/ x/ H5 V; h
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# X" H( }" U6 G0 n [$ A* j q- ] - ADC_MODE(ADC_VCC);+ a" s, t! u1 c9 G8 S
- void setup() {& {4 M9 u- k: m+ W, H
- Serial.begin(115200);% t! z, G- _1 B9 Z( q% i
- Serial.print("\r\n\n");
5 o1 V: B F3 s. j - pinMode(2,OUTPUT);! P: `# ~! j7 d, d @0 ]
- // WIFI1 ~( J( ?3 Z! z! t/ ^, J
- WiFi.mode(WIFI_STA);( C' o8 K+ W! I# c( f4 L
- WiFi.hostname("Sparkle");' ~ e# f6 `8 q" r
- WiFiMulti.addAP("wifi ssid", "wifi password");+ Y T& S% f$ Y7 \
- int tryNum = 15;
" S+ g3 W% `7 E+ d" C* o* m0 ~ - Serial.print("Connect WiFi");
6 Z$ a- n# R0 g" l - while (WiFiMulti.run() != WL_CONNECTED) {: m5 m. c0 T$ K/ J, Z7 q$ S+ N3 r; r
- digitalWrite(2,0);- E+ F* g, ^" d) a' d
- delay(200);
5 g. N: y) ]! p( P - digitalWrite(2,1);
0 [1 ~5 D8 q2 V - delay(300);
7 i( W, V& j, _: z* \! y& Z" g. s& P - Serial.print(".");9 m' r! B- h k# Q3 H% h3 N6 V$ _
- tryNum--;; f6 Z4 U8 J, m, I
- if (tryNum == 0) {$ h6 w3 U% P8 ~5 \7 ?0 {
- // 1min
4 d# ]/ s7 h: R - // ESP.deepSleep(60e6);8 h( \# d) x/ X0 t O* h* j+ ^
- ESP.deepSleep(0);7 e% @1 J' D6 [& F7 \& o0 u8 X
- }0 c) e* {5 c5 N
- }5 ]8 [1 J& ^$ a! z' U( f: l. [
- Serial.print("\r\n");, f$ |2 w. \( T8 F
- digitalWrite(2,1);: o) B2 p0 K: h; @$ _! U
- Serial.print("IP address : ");
3 _, c) r& i# @* ~) R - Serial.println(WiFi.localIP());7 R, g0 q) ]8 U) s4 @$ j9 K
- server.on("/", HTTP_GET, [](){
; n4 S, g# c+ l0 i3 q4 b8 [+ V - server.sendHeader("Connection", "close");
d M+ O% q6 u- ~ - server.send(200, "text/html", serverIndex);
% G/ V" l9 p: U+ C - });
( r1 a4 @1 y; q! J - server.on("/update", HTTP_POST, [](){
/ x3 l, i; m* F( {/ [$ i0 v0 J0 O8 K Q - server.sendHeader("Connection", "close");
1 ^+ _& M3 q' w& x4 R5 C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% k! m1 C% \5 J# {/ h" y
- ESP.restart();7 |1 X0 d- e, V+ V# D5 y3 B7 }
- },[](){
$ q( r/ M6 b* X3 Q6 O - HTTPUpload& upload = server.upload();
# R% _- ?3 O+ t% G( c( i - if(upload.status == UPLOAD_FILE_START){8 F7 {' S4 U9 i: n
- Serial.setDebugOutput(true);
i9 J, N$ m# w" O6 W - Serial.printf("Update: %s\n", upload.filename.c_str());! {6 N8 y& @- j d$ r# |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: J1 V) ]- i0 ?2 J: J
- if(!Update.begin(maxSketchSpace)){, ^; f* Q [4 }8 E9 `4 h
- Update.printError(Serial);9 ]7 \! L2 v& o" l8 u" q5 V, o/ P! [2 e% q
- }2 p7 \8 o! g, Q5 B. S
- } else if(upload.status == UPLOAD_FILE_WRITE){
# o% h( C; ~# s9 R3 t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 P- Z% J8 v* ^4 S9 t
- Update.printError(Serial);
5 I$ X& c" ^0 E. W+ \( H - }
/ @" [( g! _6 }2 C! x1 e+ q - } else if(upload.status == UPLOAD_FILE_END){
- _. @6 E% c# s$ F - if(Update.end(true)){
+ C$ l' ?$ K0 D4 t4 z- J& U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 a2 t% I& d! o' @+ C
- } else {
; v- o5 U6 a# V' @3 G' D7 ^, F - Update.printError(Serial);
! N/ M8 F |: L3 t; X - }; C; {. C' g9 r2 K. f3 A
- Serial.setDebugOutput(false);
- J( C, i6 R# V& [; C% P4 ~ z - }
/ H5 }1 u# S4 {8 o+ J% n5 H, p - yield();# P% ~6 J( \8 m: J
- });
$ m$ z/ y5 M8 t+ H2 n - & D$ ^# J% I% [( Z: c
- digitalWrite(2,0);
6 h9 T$ ?/ \+ ]9 G" G a" D% p7 C - mainAction();( N3 x) h2 }7 g6 n! a6 ~
- if (digitalRead(0)){
1 L1 c" d$ e! h/ X; | - ESP.deepSleep(0);
9 C! g0 |8 I" {* ?' l - } else {
! o# Q. C) |2 V$ F* W - server.begin();) Y8 E: r' {# C0 k
- }3 O, e( W1 @1 x6 }) W
- }* G1 D9 J! A4 I
- void loop() {
( r0 w4 K2 W( A2 o7 |) A T, c - server.handleClient();, }# R+ e/ c* ~4 H
- delay(1);
( k0 a% A. c/ g5 b - } h3 R; \/ z! e7 N6 Y; a
- String doGet(String url){/ f$ r9 @2 {9 `6 S" b* G4 y; |0 }
- if ((WiFiMulti.run() == WL_CONNECTED)) {. _2 T- S) E: ^5 c$ w) P. K
- HTTPClient http;
2 _' O' C( T9 W+ T" l! h - Serial.println("[HTTP] begin...");
$ C& e7 W( d8 K) ^- U1 ? - if (url.startsWith("https")) {
* o: F6 `7 A$ H, d6 B* | s5 E% @! f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 z4 ^2 m+ \ x - } else {' ~7 L" U$ r9 Z2 ]2 b4 z9 F
- http.begin(url);
4 D# C/ Y9 h- o7 T - }
" l+ o! _2 f8 P% X* h! @2 i d - Serial.println("[HTTP] GET...");. d Q) ^/ Q9 k& B, v/ |
- int httpCode = http.GET();
& E( J$ e% i& ]$ A - if (httpCode > 0) {
9 i9 Y; O- ?3 |* ~0 X* A - Serial.printf("[HTTP] code: %d\n", httpCode);
& p ]9 s5 T- t8 p - if (httpCode == HTTP_CODE_OK) {* `+ p5 i! y, E, @8 _8 p% `; }( @# {; N
- String payload = http.getString();8 Z- v9 |! A5 I' w/ p( j) B7 ^
- Serial.println(payload);1 K8 a2 x6 ~8 ]2 ?* \
- Serial.print("\r\n");+ l: o) i5 A4 B+ ?4 ~
- return payload;
: W: A5 p& I r( j - }
6 l( c/ g1 T8 _; V7 E7 [% N - } else {- X n- C b. e; s. X. V
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" U# X [) ^/ C9 p: o - http.errorToString(httpCode).c_str());
: a( t9 Y$ ]" J" k' n r% G/ ~ - }
9 L0 U* ?2 V# B1 r - http.end();& L, V1 m1 g6 J, q. O+ J
- return "";
' k* X4 S# R& H- A0 e - }
9 w' d$ U, M/ v( Z/ I3 A - }
* l. T/ W" @& r" p - void mainAction() {
9 x4 K8 J( y: @/ R( w: H& \& F0 ~1 @7 U - // 发送请求
; e# S5 H7 H. _5 _% p- r - doGet("http://google.cn");
% o* a. G1 A) d( t p - }8 J2 P0 H5 y( V: g& l& F; D
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