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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)
: N( ?7 C4 ]- ?! P- n- #include <ESP8266HTTPClient.h>
" l/ E2 m$ n. _ - #include <ESP8266WiFi.h>- a0 g' U- S; ~6 L" [, B
- #include <ESP8266WiFiMulti.h># D0 Q/ I& s2 o7 L; z
- #include <ESP8266WebServer.h>
}# Z; y7 L6 \- F' w - #include <arduino.h>4 U. t- n# m$ ]5 e/ c& g
- ESP8266WiFiMulti WiFiMulti;
' x, e# z! F l& a - ESP8266WebServer server(80);
! ], }8 l( K) I$ i3 y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ s( y9 ?; K; E9 U$ u. `) w4 O! m - ADC_MODE(ADC_VCC);
% W5 |5 n# O6 W3 J& q7 s# d - void setup() {8 R; L' K$ a! Z6 N5 {
- Serial.begin(115200);
) B, K0 d; ?7 @6 M - Serial.print("\r\n\n");
7 A: i1 j' u: G; Y - pinMode(2,OUTPUT);
2 i9 f z8 Q+ e9 s - // WIFI# p, |* V/ @* \3 V! ^$ r
- WiFi.mode(WIFI_STA);
! s8 z! H6 [- Y1 @9 k+ V2 J& M - WiFi.hostname("Sparkle");
& u8 z; r7 S0 n/ C2 c - WiFiMulti.addAP("wifi ssid", "wifi password");
' P- _) s) w0 n4 ^. M2 h - int tryNum = 15;
! s* i% k! y# O) ] - Serial.print("Connect WiFi");
" @8 F- {. _' g$ t2 E% H - while (WiFiMulti.run() != WL_CONNECTED) {
H# P6 b5 G4 T& ]- W! J& O - digitalWrite(2,0);
0 P4 l& M$ ]. o" ` - delay(200);6 ]! E. q) A2 R9 }& S1 a; G- B
- digitalWrite(2,1);
1 A1 L6 u4 C( C: l' }+ h2 H - delay(300);2 n4 @. o# f0 o1 \
- Serial.print(".");
. ]7 f9 \$ n% Z - tryNum--;
8 s" L) h; X5 s+ k ] - if (tryNum == 0) {& f; w+ G' K; x+ l2 l$ x2 M. N
- // 1min
/ J/ X; g4 s8 h$ V0 O8 l. b: C7 ?$ G- J - // ESP.deepSleep(60e6);
s1 J! l a- V+ \6 }* L - ESP.deepSleep(0);
$ y- N: l2 G+ B7 @7 u* H% V2 v' o8 c - }# P2 b+ M. h' h
- }! Y5 I$ T0 j# P3 F+ s# c _
- Serial.print("\r\n");4 i, ^& h, X; t$ M% l
- digitalWrite(2,1);
0 o6 o9 P! B# \5 C - Serial.print("IP address : ");. A) O; _; y6 x' O" q
- Serial.println(WiFi.localIP());0 X- Y9 o( F8 ^% O% `
- server.on("/", HTTP_GET, [](){
3 k! _/ R j! y0 [- b - server.sendHeader("Connection", "close");
' G' F! n' v( T6 d' V8 U7 d - server.send(200, "text/html", serverIndex);9 m) G8 B9 G D4 N/ S$ s
- });) w% B' Y5 k5 k' |5 z
- server.on("/update", HTTP_POST, [](){
! y1 n! m5 ]1 R0 I0 l; x" a - server.sendHeader("Connection", "close");. f; c- U8 g5 N0 z9 ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 o$ |6 G7 |& I$ Z t; B* t( L - ESP.restart();. e o) K' p6 h. x' G+ I8 Z6 g5 o
- },[](){: O. Z& n/ z) K
- HTTPUpload& upload = server.upload();
# j. y0 X' q+ l- I' v - if(upload.status == UPLOAD_FILE_START){
# o( X4 l6 I! ? - Serial.setDebugOutput(true);" Q) S5 _/ ^6 e8 C# I% w4 Z/ K. k8 l7 F
- Serial.printf("Update: %s\n", upload.filename.c_str());9 _0 S# D9 b F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 P" k; g. }# N6 {, O4 G
- if(!Update.begin(maxSketchSpace)){; r; k+ o+ A$ q. W/ J5 f
- Update.printError(Serial);
3 L: I1 D# t3 Z - }( ]$ G i7 q0 H7 [- @0 W( d. g2 [
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 q; G$ Z" ]7 B3 S& u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 [! H! l% b. U1 @; {, h4 V4 Z! i - Update.printError(Serial);$ i4 M, f5 x' I% G4 X+ O( S: y
- }
* i% p( n. e& C7 K; Q0 b* w - } else if(upload.status == UPLOAD_FILE_END){
& g! W6 U' @" N8 Z" j. P - if(Update.end(true)){
& j$ f) U. F' F( B. t - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. F( Z, d# _4 i: p/ b - } else {6 h& Q* `& G+ K1 d7 N. l" g6 z q8 Z
- Update.printError(Serial);+ k- a/ q( w$ X
- }
* O! k. @; y* t) L) j - Serial.setDebugOutput(false);$ G7 s, A. D* D( y1 _+ C5 \3 N
- }( t0 ` r' N- ^/ u! m
- yield();5 ?1 L3 P' J% `- ?& L! }" t% X8 R# s
- });- r( O4 H Y$ S. a8 P% V; N6 w& T
- ) B. a4 u* q/ f0 T2 k9 ]
- digitalWrite(2,0);& O7 E6 j4 F+ d- z2 @0 [; ?* f. a
- mainAction();5 h ~! E7 _6 M- O- p
- if (digitalRead(0)){
6 k7 T2 H7 g) {+ a% \4 |; x - ESP.deepSleep(0);
, S" J5 i$ s" J7 W; w. [ - } else {- U& ]% p/ ^# {( Z, {
- server.begin();
, i# Y6 ~6 e8 H - }# v) I+ o2 D. ?) s; A4 b; ~6 G( T
- }
0 `* H" |1 F. |9 w - void loop() {" y: N5 |( s1 G7 Z3 V
- server.handleClient();
/ |3 @: R2 y" f% X7 n5 g4 x8 | - delay(1);
. O! j6 Z9 B6 _2 }- l& ~% A - }
+ z/ W s9 I$ U' i P9 U- C$ ` - String doGet(String url){6 w5 m2 f5 ~: A9 u1 O' Z" k
- if ((WiFiMulti.run() == WL_CONNECTED)) {! c I6 E5 a: p& ~- s0 T" b
- HTTPClient http;4 i' Q) A% Z% x* h* S2 Z4 V
- Serial.println("[HTTP] begin...");, q5 j" l7 I. i4 d
- if (url.startsWith("https")) {/ K- k l( ^* U% k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" _. W; R5 z6 A1 r, p% s; t- _! I
- } else {
5 t) o& x( h% f7 i8 B - http.begin(url);
& \) \. g0 Q+ ^7 }0 s/ D" S. r) O - }
( z2 ?% A) M" m8 V1 K - Serial.println("[HTTP] GET...");
* w# U7 k9 [% f. k - int httpCode = http.GET();) W5 Y2 U- c8 x* a) c
- if (httpCode > 0) {
4 A( M$ [4 J6 H" d6 C9 ` - Serial.printf("[HTTP] code: %d\n", httpCode);/ t8 j! V4 F+ t! k4 |
- if (httpCode == HTTP_CODE_OK) {5 o4 e2 O# H* g: T# o
- String payload = http.getString();4 w% r. e: a Z0 |% D4 X9 l& |
- Serial.println(payload);
' B( l! w( z* k9 F - Serial.print("\r\n");
1 C4 E8 s$ h' U8 z6 f/ w - return payload;( n0 q8 ^7 B9 B
- }
5 U$ O2 c# W& P% [# l* L' \ - } else {/ V0 @( Z- Y5 A
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, r+ |' R# ?- Z8 x6 z" t - http.errorToString(httpCode).c_str());
$ r% N' ?& g" Q/ ] - }
) I7 @ Y* z1 J% C/ C - http.end();, l( s2 P/ p* L% d
- return "";
1 d: g3 ^( x9 ]% [0 O( c - }
" u- P4 L4 i) t8 t) Y - }7 X1 F# z. @4 ]" k
- void mainAction() {, C0 z, T! Q' Y7 ^6 L$ a. R; M9 U4 p
- // 发送请求
8 D9 T% @ Z3 e; | P2 s6 u+ Z - doGet("http://google.cn");
& U% }, j9 [9 z8 T( H - }
7 t5 ], M; p, u ?$ A7 w# K7 a6 ]4 a
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