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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), |8 j1 h+ @* C& G$ X) k
- #include <ESP8266HTTPClient.h>! o7 y7 @' P/ B$ ^4 b+ v3 [
- #include <ESP8266WiFi.h>5 C0 z; p/ a3 f- V8 q+ E: w+ b
- #include <ESP8266WiFiMulti.h>
( W, A" t N4 c. b* j8 y3 e7 ?+ i) w - #include <ESP8266WebServer.h>
3 V8 L, q0 J; ~8 ^7 h, w( o& _& t - #include <arduino.h>
- r2 b% j) w/ N: V9 v1 B - ESP8266WiFiMulti WiFiMulti; a9 m: Y8 G7 J
- ESP8266WebServer server(80);- S& d( t: f0 P- I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 r/ Y6 l# I' Q1 N# V1 b7 o9 ^6 c! d
- ADC_MODE(ADC_VCC); G! n. z5 a6 s! M
- void setup() {
3 H4 E5 \, o: A9 j' Q4 {* F - Serial.begin(115200);
C6 n j# ~2 U2 [: J8 s - Serial.print("\r\n\n");, B4 R8 w( k+ j& U) j
- pinMode(2,OUTPUT);' G$ w4 `0 f! z, d
- // WIFI P1 q9 D+ n" {
- WiFi.mode(WIFI_STA);
3 g. ?' V- x/ f) d3 X - WiFi.hostname("Sparkle");
' v; a8 B" j0 E6 l- w. m0 Y$ } - WiFiMulti.addAP("wifi ssid", "wifi password");3 x# u+ C( S S: ?8 Z H- D1 N
- int tryNum = 15;) p8 }7 f) f' h" u
- Serial.print("Connect WiFi");
$ F2 I) `8 H) B0 k - while (WiFiMulti.run() != WL_CONNECTED) {; m' |7 b k! o" H
- digitalWrite(2,0);
& Y9 J! t m# c& r5 k5 l0 L6 c9 F - delay(200);6 l" t6 N( s/ |" E2 x, }
- digitalWrite(2,1);
8 }- e4 f+ L* b: S& m - delay(300);8 \2 L. i, U$ A$ G
- Serial.print(".");
, K- l2 @3 X/ g& c/ a* X, ^ - tryNum--;
0 X: ~, W/ g* U; a0 y- B( a4 e6 x - if (tryNum == 0) {* Q/ |( x' `( g( r; W! J3 n
- // 1min
! k' q2 u' P7 T; f5 A3 ^ - // ESP.deepSleep(60e6);
2 F: s; I, r8 }4 Q5 n* f - ESP.deepSleep(0);$ p. c* j$ ~" W# f9 N
- }* e" f* A; W; ~9 B
- }: _, b% e: o, x, T; D
- Serial.print("\r\n");: c1 `) N! }" |8 @1 C8 m
- digitalWrite(2,1);
, m# ]( C9 F2 F% R9 ]* x- n - Serial.print("IP address : ");
. d7 M0 L! I+ W! \ - Serial.println(WiFi.localIP());
6 ` [& x/ q1 }1 t. j$ C - server.on("/", HTTP_GET, [](){
: [' q, K' e; ]' i" u; s- k1 t - server.sendHeader("Connection", "close");
$ e& k9 @% O5 e5 D! p i) G% G4 w B - server.send(200, "text/html", serverIndex);
- f. R! [# F! F: i, \5 V7 q. g - });- x* `, r. y/ |4 j0 Y
- server.on("/update", HTTP_POST, [](){
3 _9 c; f& s7 o3 z! M - server.sendHeader("Connection", "close");
. W6 f) o7 z9 s) E" Q# ~ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% l9 `+ j- P# c* Y: A! _
- ESP.restart();* ?0 y3 t+ z3 t+ }/ z9 [: Q
- },[](){
. R* H# i9 i1 b2 Y# |' Q% Z - HTTPUpload& upload = server.upload();
0 p* I) K3 m$ P( } - if(upload.status == UPLOAD_FILE_START){
1 a, M4 a" h( H+ W' J - Serial.setDebugOutput(true);
0 B( q C- f- z6 I - Serial.printf("Update: %s\n", upload.filename.c_str());
9 |/ W: o. o% m2 H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 o" s8 h; J8 p0 ^ - if(!Update.begin(maxSketchSpace)){$ Q8 }1 I) N8 U2 A: J' f
- Update.printError(Serial);5 s% R& X& x# a% P; y$ b1 i5 \
- }
7 r& w. u7 R) A7 Z - } else if(upload.status == UPLOAD_FILE_WRITE){
7 @9 p, D- Z* D$ f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 e8 w6 d) u7 w6 } - Update.printError(Serial);, R& J8 M: o: I% j u/ I
- }
4 \2 h: x% ?0 B2 k7 [5 |) s - } else if(upload.status == UPLOAD_FILE_END){
. l( G: b3 w& Z) j& j4 O6 b+ K( e) Y - if(Update.end(true)){
; h: [& Z! E8 @4 `# j - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ d9 S k! _+ }3 ~. e6 G7 {' G: | - } else {1 }8 P5 r! b4 P
- Update.printError(Serial);' _5 ~9 w- ~& G8 K
- }
: ^ @. j* r+ O - Serial.setDebugOutput(false);7 g4 Q' ? ^+ b* W+ Y) I: U$ s
- }7 _0 ^0 }( ~# N! M, p% s
- yield(); T1 ]* ~9 v. Z
- });+ _ o/ C" W. y
-
8 Z% y# R# H# k0 o - digitalWrite(2,0);* Y" H; m$ ]/ N( U/ }, P4 b
- mainAction();: R" G& |+ V8 E2 j8 P7 C+ K4 z
- if (digitalRead(0)){
) y: a/ H4 }. @4 s3 c2 ` - ESP.deepSleep(0);
# I1 T! ?0 B! H% k - } else {/ l# f, j1 R4 n O1 k! O' z1 J
- server.begin();1 V6 e/ d) P; Q' e
- }! W# v1 J$ l4 D. s+ {( K# X: `
- }+ q/ c- l( M2 q9 Z3 K' O4 X+ R- F
- void loop() {
& q/ Y3 R4 t6 ^8 R" W' i - server.handleClient();5 @* p- c( `* |# c9 l4 T2 w* [
- delay(1);% c5 Z- _3 p% b0 K# _7 ^% Z
- }
/ j _; T S% G2 U. r' l# B( W - String doGet(String url){
" ^ S8 `- c7 ]. a. o - if ((WiFiMulti.run() == WL_CONNECTED)) {1 I( J- J8 g1 |' F8 J; a
- HTTPClient http;+ ]3 X( b @+ [% q
- Serial.println("[HTTP] begin...");! L; \% [; ^/ o9 N- x
- if (url.startsWith("https")) {
& X! {& V6 e, b. A# I) R: w) _" O - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 t; a8 z. E5 U2 k% |- I5 ~3 B; G
- } else {& ^% ~$ U5 u2 @% L$ ]
- http.begin(url);
! C& q; E' S0 y6 g3 H: B - }
' z J& {* B3 [: m - Serial.println("[HTTP] GET...");/ ^) W. e8 G9 s- S. f: N
- int httpCode = http.GET();
4 H- H% ` i( u0 Y - if (httpCode > 0) {
7 Z. H L- G1 C" V' {5 G9 I+ V& Q - Serial.printf("[HTTP] code: %d\n", httpCode);
5 w2 O( E/ X: Z' r3 f3 ]2 n - if (httpCode == HTTP_CODE_OK) {7 I$ r: b' z9 ~5 L }) \
- String payload = http.getString();% I. G1 w9 q) u' h/ \# R8 [
- Serial.println(payload);$ |4 `3 X% i' C5 q+ S% ]+ P' J
- Serial.print("\r\n");, M5 n5 g8 `/ s5 @4 I2 {. c
- return payload;2 N: k6 T' W( q3 P, G1 {8 O) v4 b# l
- }! \3 X( O J) Q- o" i
- } else {
/ _: I, i9 g1 }/ } i5 ?& {% f- j& E - Serial.printf("[HTTP] GET... failed, error: %s\n",
; N' z- \8 y5 [5 ?' S7 u; ] V - http.errorToString(httpCode).c_str());
( s- l- A) ?* B4 @, d5 |9 c& L) A - }
7 p. `7 o7 _- P2 n6 r - http.end();8 q& d& v+ G1 c3 }1 t
- return "";* Q3 q, Q# j% D
- }
' G4 h) @; [" p- X# j - }
5 v9 o8 Z& [+ x# H - void mainAction() {4 ?5 m3 y$ e! w) w( m7 F
- // 发送请求
: Q! s8 N: K1 W8 G) J - doGet("http://google.cn");
8 O4 t+ x l& z# S# s, S - }9 b5 I/ ]. c4 ]
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