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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)9 |- _8 r6 X9 N! b4 o. ~
- #include <ESP8266HTTPClient.h>" @5 z% s" y, b6 [4 J. {
- #include <ESP8266WiFi.h>
1 b' v. {& b; h3 c5 h - #include <ESP8266WiFiMulti.h>9 L/ m8 h0 Y* K* R
- #include <ESP8266WebServer.h>% N' H t% t7 ~" l1 ]
- #include <arduino.h>; `+ ~* ]" h+ s, h i- V! i# q/ H
- ESP8266WiFiMulti WiFiMulti;
7 i6 _ O: O+ f. T2 M. |' U+ A' T - ESP8266WebServer server(80);% u7 P+ z. C6 ]* Q9 |2 K) t* I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. j# l6 ]$ U6 a( c. U8 Q. E5 q
- ADC_MODE(ADC_VCC);
% ` z2 {- F3 q0 Q/ r - void setup() {
, }8 S) O% @# M' B4 V: ? - Serial.begin(115200);
% R2 H, U4 p+ X& M9 _, r4 i6 k - Serial.print("\r\n\n");
' a# v. Y# g: S) X( v# l - pinMode(2,OUTPUT);
3 O. J1 h# P7 ?8 p' I& c- z6 p! K4 C - // WIFI) E8 N9 t0 n- B& \
- WiFi.mode(WIFI_STA);
7 H' x0 m6 t6 _$ a# ~8 ]; y - WiFi.hostname("Sparkle");
" s" p9 |% b9 @* i - WiFiMulti.addAP("wifi ssid", "wifi password");& I9 ~- b0 e* |% G
- int tryNum = 15;
7 @3 v! h2 K4 ?/ n - Serial.print("Connect WiFi");: m1 K$ N% P1 C# f8 |& U
- while (WiFiMulti.run() != WL_CONNECTED) {0 A8 {$ C( D: I7 V- U- E
- digitalWrite(2,0);
' ]1 |( }* I: z4 k' | - delay(200);. @9 l* c! m d/ s) |; K {
- digitalWrite(2,1);" i0 S+ E9 {1 m4 u
- delay(300);
1 q4 n3 b# Y) V- s) E - Serial.print(".");6 g+ A5 V) C% h' ~2 B F
- tryNum--;, K. v# I8 T1 r
- if (tryNum == 0) {
, X# A# V% [3 ]) O - // 1min
% W* [( e8 s9 ^& Z. W$ R p+ F - // ESP.deepSleep(60e6);! n" r9 `/ D% k/ E
- ESP.deepSleep(0);3 v# X& z# u/ ^6 T, S1 M- D0 L/ j% Q N
- }& M. @, B0 x! u% ~( h0 d8 j8 y
- }
( o- v4 y3 {. z5 v) O% z3 Z) u - Serial.print("\r\n");9 b; {; E _$ f7 b/ j3 K/ X/ X1 h
- digitalWrite(2,1);# H% p% O6 k! S
- Serial.print("IP address : ");: I2 j5 D) R4 r, y' u) f7 J( C
- Serial.println(WiFi.localIP());" ]$ \( M1 _) R# ?7 ?. M7 w
- server.on("/", HTTP_GET, [](){
# s& P/ r5 l7 L+ l& `6 h* I - server.sendHeader("Connection", "close");0 ]" h! P* A7 T2 x# b6 [
- server.send(200, "text/html", serverIndex);
- B' O7 d- B6 C8 x+ W - });
) j s* \2 `3 L! x, \ - server.on("/update", HTTP_POST, [](){
/ Z- v) |0 O( m; _! v - server.sendHeader("Connection", "close");
" P0 s- u" @2 ]! _! e5 L- ~, E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ A) D" ]; M0 N7 \; G' L5 {% G
- ESP.restart();
* o1 i. F' G6 x, R m - },[](){
7 q( j. X" e; O$ z" V5 i; {/ o7 Q - HTTPUpload& upload = server.upload();
7 c( r& o" f, w X$ i# e5 w - if(upload.status == UPLOAD_FILE_START){
& h+ Q% j% R1 A# Q: ^ - Serial.setDebugOutput(true);( B/ G- T1 O0 w p2 r8 i& R
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ }( |: x: R7 P/ p- F2 I" }: S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& Z. _6 \0 o1 J! F; K1 _* N8 ^# J9 t - if(!Update.begin(maxSketchSpace)){) T4 ]2 }8 T. b# X# I* b6 ?
- Update.printError(Serial);
7 L0 P- R: m4 m* C( G9 j3 [5 m - }4 Q* t/ T/ O8 A
- } else if(upload.status == UPLOAD_FILE_WRITE){5 \4 n' p: _- k, j4 a$ v
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& b, g1 P" S* W4 Q
- Update.printError(Serial);
( V! W1 I! s/ [/ M g" H9 J - }
3 b4 d/ t6 z! j - } else if(upload.status == UPLOAD_FILE_END){
2 B* t) w7 T/ V/ `: b- {5 q - if(Update.end(true)){. D& L9 ~ N# a% }& ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 ]$ c. e4 g& w e
- } else {3 v0 ^# Z4 d9 P- O' V: C7 y
- Update.printError(Serial);
+ q. X, u# Q) T4 L4 Z+ ` - }5 g7 J3 ~* @# y$ I
- Serial.setDebugOutput(false);, b2 m; u9 s2 c+ q% Z; f# b
- }
! P9 \! c" }' r# U+ ^5 ~1 `8 W \ - yield();$ j5 v% |* y }" k6 S
- });( E O( T0 F) }+ {5 l4 e& l2 t. e& i! [! h
- ; E8 \% W) N% Y, l3 R% J) Y6 }
- digitalWrite(2,0);0 P) q# _% K" Q
- mainAction();% h* b1 ]7 S/ O( {; ^' w
- if (digitalRead(0)){* _' U9 s+ l& W$ c
- ESP.deepSleep(0);
8 ~% z Z- n* @, H9 i7 D; I& X9 s4 R - } else {
0 C7 l* h% C+ n; o) C b+ c - server.begin(); z$ c0 U' X- O1 d8 v! E
- }9 x# ?: X( u1 M& U; m
- }( h, j4 o" K' c8 y6 m6 q4 R# h
- void loop() {
+ T& L8 o* I4 m4 E# t3 f; Z" ] - server.handleClient();* N6 L) f( b: {8 v
- delay(1);
/ t) X: K8 g' [( f7 u - }
- o4 h1 v& m* M7 v - String doGet(String url){# A! V+ m& O6 y1 T
- if ((WiFiMulti.run() == WL_CONNECTED)) {
9 u4 p9 n9 a) T0 H - HTTPClient http;
2 i, _! }) B1 {; R0 _# O& Z - Serial.println("[HTTP] begin...");
2 t$ P5 S& b8 Y - if (url.startsWith("https")) { {' R0 X: ^( q& k! [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ J& @8 h' N7 m4 t8 ?$ ?5 S
- } else {
: c+ z5 g W# s* n - http.begin(url);
1 }( `/ S- d3 \7 ~$ C: d - }7 _2 W5 r7 K; _, Q+ y" p
- Serial.println("[HTTP] GET...");& p+ E9 I& E2 J: z1 ~; x) a
- int httpCode = http.GET();
6 H! g% F( ^ j. H) b, @ - if (httpCode > 0) {8 Y4 H' k- u# @/ h1 L2 `. L
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 f1 t L; z' b( j0 T! n - if (httpCode == HTTP_CODE_OK) {
+ S# K' V" F) z) F* r( ^ - String payload = http.getString();
( ~( f5 e8 ~+ N0 o' x4 w$ i - Serial.println(payload);
W; ?, G" P& i1 _/ [& H - Serial.print("\r\n");
$ _4 r3 r) |" ?3 }& b6 K! T# h - return payload;
5 x& D* c/ \1 _! {/ x8 S - }+ j1 K9 w$ n$ N/ ]4 m* }3 f7 ^8 h
- } else {9 W. W% t6 ^5 n% X3 V
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, {* W% G; {+ e; D - http.errorToString(httpCode).c_str());# f4 ]! E$ h5 A: a$ E: q- _% Q8 l
- }
- c* A5 x4 R* _8 f# k8 c - http.end();% _1 Q$ H; o8 Q4 P# Z
- return "";7 j# P: Y' ~" x4 Y
- }% C% }/ j/ e- X6 S
- }# F4 w+ ^3 j/ w
- void mainAction() {
9 [- M' k/ O3 C5 n - // 发送请求$ G; _6 E6 U: ~
- doGet("http://google.cn");7 m8 I; n" ~; {0 c2 A
- }* _: {* [( i* o x
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