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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)( H% F! n$ M! p% k
- #include <ESP8266HTTPClient.h>* m6 [% ?; s; y7 j: H2 j# O9 p
- #include <ESP8266WiFi.h>4 ?. p3 \' v# c6 X2 S1 g
- #include <ESP8266WiFiMulti.h>
r( K8 e! ]- I& C - #include <ESP8266WebServer.h>8 Z2 q3 F9 y/ ~. i
- #include <arduino.h># v6 ~, @/ U9 m% [+ J& i- D7 l* i
- ESP8266WiFiMulti WiFiMulti;
+ X9 a& E5 K$ F) |# p/ _! S% u - ESP8266WebServer server(80);
0 h& X( Q7 E( k1 K: w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ Z) {% m) K" E9 |2 s6 H m+ z) c: w
- ADC_MODE(ADC_VCC);3 G' D2 @! k) T1 D9 @
- void setup() {( G" L/ c- E. i4 v9 L8 i( |7 |
- Serial.begin(115200);/ J e7 d% j8 ?0 {( M' z
- Serial.print("\r\n\n");9 L* j) G# n# N; Z! E5 ~, c7 D
- pinMode(2,OUTPUT);
8 n+ e5 P3 G. w, d- h. @ - // WIFI, K7 r( b% p0 k% W F6 M
- WiFi.mode(WIFI_STA);5 I: |* \' n1 j7 B
- WiFi.hostname("Sparkle");8 J& f$ i) U8 t3 m, [
- WiFiMulti.addAP("wifi ssid", "wifi password");
( @4 ?1 z! T: t: L$ E6 W* ? - int tryNum = 15;
) T& Y& ^( P. I; m# }" B' j; s - Serial.print("Connect WiFi");) d$ Q! F' y2 ~1 S
- while (WiFiMulti.run() != WL_CONNECTED) {* m2 d: D# k4 U0 F
- digitalWrite(2,0);+ l, S) t: ?) a5 L6 F. P* T$ [
- delay(200);
' S# _: j6 ?8 c6 R - digitalWrite(2,1);
6 P5 |3 b( b- T& R. M0 [ \) q - delay(300); F6 _6 i% m$ @7 }$ y
- Serial.print(".");5 Y: @. d1 E, g. q0 @8 h
- tryNum--;
! f2 p# m- g0 X+ w) x' N - if (tryNum == 0) {
4 A7 U- n: W" W/ d: D$ Z6 I - // 1min% E- p2 e* i% ^, ?, \
- // ESP.deepSleep(60e6);3 B/ f% L: v9 c
- ESP.deepSleep(0);- G# D2 W3 W6 c* f+ F
- }
7 [0 _6 P/ H- H( I/ X, U - }
- I4 R9 n. [/ i& F' L - Serial.print("\r\n");3 D- h7 H$ P% o% d; Q( t3 h
- digitalWrite(2,1);: h3 c5 @( o5 K: j
- Serial.print("IP address : ");/ j) m+ S0 U$ O( T
- Serial.println(WiFi.localIP());: Q' Q6 E0 d4 }
- server.on("/", HTTP_GET, [](){
+ M |# n6 L$ `- f: a# s# U6 D+ R - server.sendHeader("Connection", "close");" t+ [' r- @8 K) f; x
- server.send(200, "text/html", serverIndex);
! ^* Y; e6 g# A7 X* K - });9 o8 z. Q& `7 D' y/ g0 O4 `
- server.on("/update", HTTP_POST, [](){
! V7 K, n0 e8 D. h( I- [ - server.sendHeader("Connection", "close"); h: z: V9 @/ @
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
J* e& H% x+ `7 |1 a$ s - ESP.restart();4 C: z- ?. I/ w
- },[](){
/ y$ `# j7 x1 z7 v. g - HTTPUpload& upload = server.upload();
- I0 i1 u1 X' m/ i& ^ - if(upload.status == UPLOAD_FILE_START){
- M l# O0 V: D8 b5 H - Serial.setDebugOutput(true);. m& G% q4 L6 O! L1 ?8 P. c: r
- Serial.printf("Update: %s\n", upload.filename.c_str());
! P% D/ z3 H/ J( e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 ], Z" {& t+ Z3 E! o) b - if(!Update.begin(maxSketchSpace)){8 J) O! t& c. n2 L9 Z- Q" L3 r% G' r
- Update.printError(Serial);* w* C! h( i T1 w8 f" b
- }/ M& H4 S* p- _1 r4 A
- } else if(upload.status == UPLOAD_FILE_WRITE){; B& J* q# {$ F+ P0 U e
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ E' w7 D/ `" O - Update.printError(Serial);
1 r; ^ U2 m+ k0 C% i x; z, Q - }
( {. t' p! q: W% W5 Z& F - } else if(upload.status == UPLOAD_FILE_END){$ D2 Z! M7 }; z
- if(Update.end(true)){+ d7 ^* z+ W& }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 U: a1 X+ [! O' n+ u - } else {+ a' t. S, F! W3 k3 J, G
- Update.printError(Serial);" Y& N+ {/ t' O- u) G% ?
- }7 b4 J* p$ g& S$ K# e2 p+ ~
- Serial.setDebugOutput(false);
& S/ `& d4 A6 z* d! U& D - }+ S6 B4 ]4 I6 s
- yield();; w2 x5 D: ~9 O1 `2 i, n' B
- });6 N3 e' i' g& K! l( A5 R* t
-
( q6 P$ G6 {/ C/ d' }3 n T - digitalWrite(2,0);
4 m+ n: F/ r# A) [ - mainAction(); E9 U) c' E6 J% H4 z+ x5 c4 q
- if (digitalRead(0)){
. z' a) N& h+ U) c2 T5 F1 o - ESP.deepSleep(0);4 t0 m: H3 b0 I
- } else {
; p1 [/ t* o- A. m; t - server.begin();" D% Y: f4 ^, q: o
- }
& i# s: T' n9 c# ^) R8 e - }
0 `# f c% d( K9 M1 }4 F8 k# u7 o - void loop() {
! [5 ?2 }0 r- V - server.handleClient();: C9 M, `: ^1 K5 ?
- delay(1);% n6 c7 N6 S; W( @& Q
- }1 h/ _! v7 }. }6 R1 t$ T
- String doGet(String url){
: a* E' N' W8 V6 H - if ((WiFiMulti.run() == WL_CONNECTED)) {
* C- k7 u3 s6 I3 j+ D2 K( I; O - HTTPClient http;0 l$ E5 T% C3 D% U5 l5 Q
- Serial.println("[HTTP] begin...");2 M- R/ P, y$ |3 [
- if (url.startsWith("https")) {9 A9 M: m7 W l0 c6 L) `, Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 e4 H# L. Y7 u/ L1 a, O: t# B3 ^
- } else {6 g' c" }. P7 |. g+ e
- http.begin(url);
& s! ?, r9 [5 \3 P f* Q2 [ - }
9 y( Y* h. `4 ^ - Serial.println("[HTTP] GET...");
3 B: y+ Z( D* v _- ?5 X! l - int httpCode = http.GET();# k1 X# t- J' Q; J8 `% T- Y
- if (httpCode > 0) {$ x) I9 _# Y8 ]5 G% l
- Serial.printf("[HTTP] code: %d\n", httpCode);- s* W0 R% h j+ Z& l+ H3 r4 @
- if (httpCode == HTTP_CODE_OK) {
, l& _3 v9 }+ b: r, e! O - String payload = http.getString();
0 k% V, U# {% o* Z - Serial.println(payload);# R2 N# Q( b7 L2 p1 x. r1 H* m+ [
- Serial.print("\r\n");2 R. d7 W9 {3 Z5 l* ]9 j7 `' Z
- return payload;
# J/ o; R! ~1 ^1 m- B - }. p# J# x/ a: U1 t5 s" s
- } else {
5 X* v2 A& ]% s7 K - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ Y: x( @: Y6 `& X f - http.errorToString(httpCode).c_str());
; z9 L7 m& W! }% z$ P - }( e% X6 ]' e$ a$ w" W2 I
- http.end();
9 d% i& h% l$ \; E: U - return "";
% d; ?" k! L# X# l5 I - }
6 E! G1 h0 q. f) _- P: B4 z - }
& `' d# g# |) D: j) z! R" K - void mainAction() {
: D* h3 r. ~( ~ {, T - // 发送请求+ M" @- y& r: K/ ^/ Q1 b
- doGet("http://google.cn");
, D6 w6 X! W; }7 l# W - }$ u; K# d2 @( [5 s* q' i7 L) {
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