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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! ^9 N' t- b% G$ C5 n: ]+ g
- #include <ESP8266HTTPClient.h>. m% }2 q2 O3 e2 y& Y0 ~
- #include <ESP8266WiFi.h>1 d$ H2 {% A' ~
- #include <ESP8266WiFiMulti.h>! `3 n' T+ z3 x" q& K) z; x
- #include <ESP8266WebServer.h>, ~8 p# d% A. n' u
- #include <arduino.h>
3 T- ` ~) Z8 x: \2 p& d - ESP8266WiFiMulti WiFiMulti;& E. F0 }9 p. O- j" f! u- s- A
- ESP8266WebServer server(80); [# g, n8 b8 n; T8 y$ V+ _" Z V6 v
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 Y- B: u q; o - ADC_MODE(ADC_VCC);
9 y8 b- V2 [- d7 G$ h3 ~. O - void setup() {
) v5 n% x. O& f" V - Serial.begin(115200); t" \* w4 _6 g# v' Z
- Serial.print("\r\n\n");
% R9 |2 r( p( j8 x' s" k: ] - pinMode(2,OUTPUT);
* l ~* A ?2 h! i* l3 w* U% N3 m- M - // WIFI
' ]- P8 E& E$ \" z- I: a - WiFi.mode(WIFI_STA);; E4 m* H) M8 s9 v9 Q9 x& ?' z
- WiFi.hostname("Sparkle");+ y! f- r# h/ H$ i$ }. P5 Z7 A. y
- WiFiMulti.addAP("wifi ssid", "wifi password");7 @! M$ T1 s, ?% L0 W) {4 V
- int tryNum = 15;7 e# X: `0 t- e6 Y& E; E3 ?) s! t
- Serial.print("Connect WiFi");& m& |& h% C+ e* w' h) ^5 O
- while (WiFiMulti.run() != WL_CONNECTED) {
" V0 F2 i! x- i# G/ Q) F - digitalWrite(2,0);
/ ~+ n8 i- H' Q% }( }& O1 P - delay(200);3 ]4 S7 l& r2 c! {* ?
- digitalWrite(2,1);8 ^ Q! s& j# J6 o2 y c
- delay(300);
7 A$ M, l; n( `. H) F* [ - Serial.print(".");
# w0 T. Z! |$ R1 x9 [1 { - tryNum--;1 Z; h% {" j6 X, {/ j! e& W6 {
- if (tryNum == 0) {: V% z# i+ c1 A& Q
- // 1min
/ G2 e/ L' U4 n- X; c; \ - // ESP.deepSleep(60e6);7 G G/ Y& G2 j0 j
- ESP.deepSleep(0);7 i5 Z2 V/ W2 J- z: c' ~
- }0 p7 V1 O6 _" s6 b5 v; B4 M4 B5 b' x
- }
, }4 l. w4 T$ A - Serial.print("\r\n");
. _6 n4 w' m+ l4 ^6 }: c - digitalWrite(2,1);8 b+ E5 Q- }. b# L0 J0 y
- Serial.print("IP address : ");
( c! @6 G8 `1 F8 L$ m. a4 p - Serial.println(WiFi.localIP());4 B5 d* k3 ^; H5 {+ g( V( \
- server.on("/", HTTP_GET, [](){5 m5 `( S2 x0 S! G. A" a
- server.sendHeader("Connection", "close");* P; v6 L: O4 _
- server.send(200, "text/html", serverIndex);
% S' g Z7 Y4 k9 y9 S - });
% @! b% V$ f; A5 c1 I' A0 ]: ` - server.on("/update", HTTP_POST, [](){
* Z) u1 m e T0 b% ^: c9 Y - server.sendHeader("Connection", "close");
% z% X: K _+ Y# L" W - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! e6 ]) }& ~: l g/ Q: D: n
- ESP.restart();: b' a2 U! L0 y. }+ [
- },[](){) \. K9 F2 p# {) }1 n3 U: T
- HTTPUpload& upload = server.upload();
{8 _" z4 e- F# S; m2 S" h U - if(upload.status == UPLOAD_FILE_START){
+ e! b) o% w! W' I, w! \# V - Serial.setDebugOutput(true);
6 i/ A5 [6 n3 l8 ^6 n8 m, j - Serial.printf("Update: %s\n", upload.filename.c_str());
1 A6 Z" E) n: M( S6 @ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" F& B/ N% `; Z3 \; G) a# h. f
- if(!Update.begin(maxSketchSpace)){2 q5 S }2 u; J
- Update.printError(Serial);
1 H+ h+ x' W# l - }! ?1 A# Y5 g ~1 k1 R
- } else if(upload.status == UPLOAD_FILE_WRITE){7 x! p5 ?4 p( z' k" k" Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: P& j4 u: \3 O* i7 X - Update.printError(Serial);- z, M4 m1 i& J% w- ?7 [
- }
3 g4 @7 P8 ^. S/ O1 y - } else if(upload.status == UPLOAD_FILE_END){2 f/ w) g( J- ~& }7 L d
- if(Update.end(true)){
' g2 `, E$ n( q9 \5 c& f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 _# m3 s8 l8 J3 K$ z1 f - } else {
, C3 a$ o% r9 m2 c - Update.printError(Serial);
/ I2 ]6 z# j) t h* G' K7 D' r - }7 @ }6 `, P: D ~6 O6 s
- Serial.setDebugOutput(false);
$ E+ k) b! m, P2 D - }
7 d- a- H$ M" n - yield();
+ S+ x* f" X L5 e& D - });
8 F. X4 a- e9 t4 G -
8 U: `& _: U3 n& X5 S - digitalWrite(2,0);% F8 z& L# u: y% E
- mainAction();
" Q! S9 ?$ s& z! Z - if (digitalRead(0)){+ y; h Q8 W$ d: f8 k6 k5 M* _: O
- ESP.deepSleep(0);9 S! B2 ~2 `$ R) R7 n6 X4 y
- } else {
0 w U% z0 |1 C( i* \ - server.begin();* _. S4 L8 L6 I3 V7 X" w# E9 M
- }% h2 ?# I, b* e) c' t
- }
1 J# `" m5 Q6 | - void loop() {$ f: f2 ?9 D; I
- server.handleClient();
9 `9 d3 ~, a4 W, ` - delay(1);1 K \) |; u9 o9 j, C
- }
' J. T6 Q3 | |" O! | - String doGet(String url){
' W8 K; v c4 v - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 \. y* B1 B B( m - HTTPClient http;
: z0 A% T7 ^! k. m. b6 j) P - Serial.println("[HTTP] begin...");7 E6 c* I- q) A. z
- if (url.startsWith("https")) {
6 U- i1 y) f! p) g x& R' r, v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! c* n8 L: Y6 D8 S+ ?
- } else {
% L( Q6 O/ h- P" @! ` - http.begin(url);
1 [$ k7 J9 P. H7 C: B9 q$ K4 v - }, ? {( A$ C9 _7 z1 u$ A, M$ D
- Serial.println("[HTTP] GET...");
$ ~+ {' D' E& R4 _* B1 u - int httpCode = http.GET();
1 _ h' j8 E0 X# d R - if (httpCode > 0) {5 H) V# ~7 s3 V# G/ ^1 m2 S
- Serial.printf("[HTTP] code: %d\n", httpCode);$ G& a; Q; m' H. ]7 ?
- if (httpCode == HTTP_CODE_OK) {( w( E, g4 F' Z, Z& c" b, k
- String payload = http.getString();9 I, r- ^' B3 z: S# o) M( |
- Serial.println(payload);2 ^( V/ W' P- F) i9 q
- Serial.print("\r\n");. l8 q/ R" ^$ Y4 [3 R
- return payload;
0 y3 ^+ s# `' L' @/ |' B5 Q7 H - }, ?& |8 S d+ a% z7 |" u
- } else {+ m2 z) D+ E, n
- Serial.printf("[HTTP] GET... failed, error: %s\n",, L/ D5 ?2 p0 `0 u A( n
- http.errorToString(httpCode).c_str());( G/ s! c, B* _# \# t6 I" c: Q0 u
- }
, }3 a! ^& E* p% U" K - http.end();
" {8 J0 X/ e. | z2 { - return "";
; n5 t. X) {5 f! s* V) `/ c - }: X! V" w% [1 a7 O8 K- |
- }; r6 g+ X8 E2 J( y
- void mainAction() {& P: X% v X; T
- // 发送请求' [! F8 a, C. K
- doGet("http://google.cn");! D% `# I; Z# @: k! C2 F2 O' L6 A
- }
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