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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)
$ I0 e0 H( q) d8 `- #include <ESP8266HTTPClient.h>6 r. a# h! ?6 ?% m
- #include <ESP8266WiFi.h>
' O3 Q; F u( P d0 I: j1 l - #include <ESP8266WiFiMulti.h>/ M% E/ T" P* C: V' s6 M$ L
- #include <ESP8266WebServer.h>8 K7 O9 x# f& v2 f
- #include <arduino.h>$ ?! U: ?& l. [9 ~0 _
- ESP8266WiFiMulti WiFiMulti;( H2 x& U( l9 G9 d! }: y
- ESP8266WebServer server(80);4 U- B# y, O/ n9 R' J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 X2 M3 @& b5 J1 G0 L+ N6 U - ADC_MODE(ADC_VCC);# H; a O) D7 b
- void setup() {
1 z; `' i5 Q& x7 e0 [, Q3 t - Serial.begin(115200);6 e. P' s8 a7 B; _* ]7 G
- Serial.print("\r\n\n");
$ x6 l( }4 M. G$ g9 j4 G; B - pinMode(2,OUTPUT);8 B9 x* v, D/ |# Q2 q
- // WIFI
9 \$ r. a4 J. ^2 H8 j7 S7 N - WiFi.mode(WIFI_STA);& n" S1 J! l& i3 c5 l+ O) f
- WiFi.hostname("Sparkle");
8 ]+ w, L9 J. _# f0 N - WiFiMulti.addAP("wifi ssid", "wifi password");- `6 x' z0 M; G4 W4 {3 d/ {: g X) z
- int tryNum = 15;
$ [8 d8 ~& o+ z6 p - Serial.print("Connect WiFi");) T& _0 s' k' w4 U5 H" ?
- while (WiFiMulti.run() != WL_CONNECTED) {
7 P% E* Y f2 }; {9 }/ A# u4 D ` - digitalWrite(2,0);
1 ?* [9 r' T7 @& [9 O - delay(200);
. @. E9 _, }1 R& |5 g7 Q - digitalWrite(2,1);6 u! N; T C* Q
- delay(300);0 N' r2 t7 l6 C; c/ L/ }
- Serial.print(".");
! G: h0 C- K6 K/ J6 d3 Y* r) N0 f - tryNum--;; } z8 C8 _+ j% ^- O" I1 M" j
- if (tryNum == 0) {
2 U: w( ~( ^8 f& W - // 1min
G6 C3 i& e& d* @# r - // ESP.deepSleep(60e6);) ]- l2 l3 ~) V
- ESP.deepSleep(0);% K9 R3 m Q3 ?0 r8 H' e. h5 j0 ^
- }
+ |1 r9 L# T$ [+ Z - }/ D& C2 c" a1 J0 A3 P
- Serial.print("\r\n");3 o- H) F' i0 z8 X [; u y
- digitalWrite(2,1);. M. P% f% k5 R
- Serial.print("IP address : ");1 V* Z% y2 Y; Z3 [$ Y
- Serial.println(WiFi.localIP());' I! y7 T4 F4 I1 ?% ?8 B7 J. l" E
- server.on("/", HTTP_GET, [](){
. k# M5 g2 @1 F - server.sendHeader("Connection", "close");
7 q& v5 M0 }! Q3 L( b - server.send(200, "text/html", serverIndex);
/ v8 `+ x0 \9 G - });! J7 |" Z* [& l4 u) u: m: u" n0 S
- server.on("/update", HTTP_POST, [](){2 o9 I; u5 ]; K6 l6 ~6 D
- server.sendHeader("Connection", "close");. M! a' ?5 Y1 X0 f
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. ?( D7 p2 n; v2 t2 j# X' }1 r
- ESP.restart();! C; s0 O3 ~1 r" U/ ]* B$ y
- },[](){
- G0 f; ~+ v+ p; k8 D( F: w - HTTPUpload& upload = server.upload();
+ p* v. }) |, g1 U5 G - if(upload.status == UPLOAD_FILE_START){5 j; T$ X! t9 l' K* `
- Serial.setDebugOutput(true); [0 f' A1 Z# |; \9 X5 ?$ S
- Serial.printf("Update: %s\n", upload.filename.c_str());
h% v& c- \$ c" H& v! I' p' x) ?( ] - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 ^$ r( E7 m$ {$ J" O. I4 V
- if(!Update.begin(maxSketchSpace)){
/ B& U U3 [! ^( s - Update.printError(Serial);
9 E3 l" @7 l5 B+ Q" O* f4 Z k - }* {" U8 V7 e+ ~7 f+ D) m8 Z0 T
- } else if(upload.status == UPLOAD_FILE_WRITE){/ ~% L$ r, U) C7 b3 B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# ], [: e; h4 k
- Update.printError(Serial);: v8 P. ~; G; c5 Z. R1 O0 G
- }
. l7 H5 [4 G) q4 ]2 f0 s7 n - } else if(upload.status == UPLOAD_FILE_END){2 G3 n0 a' G& ?8 I ^7 g2 G! D
- if(Update.end(true)){
) d# a! S* T, L/ H6 \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ G' {5 V* `" S. q9 D6 H - } else {
; @5 l" ?) |, @* o - Update.printError(Serial);. X/ K( d: w7 P* l
- }
- h/ `9 N; }& Q3 F$ n3 v, J - Serial.setDebugOutput(false);/ \) Z, |9 ~3 ?7 Q
- }
. a% _; `/ O! Z" V% d2 ] - yield();, I3 y4 M8 y9 ^
- });
2 S) k4 G1 g+ w1 F) E - . O* `$ g+ O& I- D
- digitalWrite(2,0);
" B& b7 \ S4 h; V; O, ^3 G - mainAction();
3 }$ l! v4 l- [1 o. | - if (digitalRead(0)){$ E2 ^$ D5 e7 U
- ESP.deepSleep(0);8 y: t( _, A/ H6 j* j
- } else {
1 y- {, r! r) Z8 u7 Y - server.begin();8 V2 N& X+ x" u w! L4 J
- }5 B3 |5 D! z8 `# T
- }
0 Q3 i2 A% R& v; u7 Y& v - void loop() {
7 f4 U- i7 Z! N8 Y- ~ - server.handleClient();' R2 w' A+ I# `4 u, R8 |- A
- delay(1);8 }" t8 p" M+ y
- }
; O( w, M+ a' U$ q; A0 |) V - String doGet(String url){
) l6 g& D6 u8 w; o3 w- @ - if ((WiFiMulti.run() == WL_CONNECTED)) {
; ~! O0 L) U) B; I5 N, D# N - HTTPClient http;2 T" `% K( u! Y! v H% Z
- Serial.println("[HTTP] begin...");6 e$ s1 T& b( \, V1 t; v
- if (url.startsWith("https")) {
3 v8 G1 z' P M2 k: t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 y) ]2 g* P3 g1 K! _7 z' V; o" p - } else {
8 f4 W) ^* m9 h( ? - http.begin(url);
; ]* O) l- A4 E' j - }
: s' g& g& Y2 v - Serial.println("[HTTP] GET...");
! [8 b$ w, C. r# g: K& J - int httpCode = http.GET();
0 V" S6 I3 J4 c - if (httpCode > 0) {
7 V1 y8 \# K4 ?3 b! P7 u: l - Serial.printf("[HTTP] code: %d\n", httpCode);; \' i6 v- \8 D8 D0 G$ w5 N; j
- if (httpCode == HTTP_CODE_OK) {* l) k+ h& T8 Z$ H) k0 f4 F
- String payload = http.getString();
. A5 i; @4 l' v1 R/ c) K. Q" m4 I - Serial.println(payload);! D. s+ \3 }6 I% J+ X5 H
- Serial.print("\r\n");: R) e6 `% ] Y' b% l7 U) d; r( ]
- return payload;( Z9 E: A3 O0 E2 m
- }: _( s8 o" a; s5 m7 w/ i+ ^- {
- } else {2 b/ F3 E+ Z( \' p2 l5 A9 ]" o
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: v/ {, e; Y, W: P) C2 g - http.errorToString(httpCode).c_str());
5 g6 [$ g' ~; v1 @6 A- ` - }
' A9 O% |, y2 f% [; _ - http.end();* [4 c+ r, l+ E) j) U
- return "";
( x& b, y! r$ \% g0 m' Y2 { - }
, y; O8 d. `1 z( Y/ N S# b0 ` - }
( d! F: u: c3 D - void mainAction() {9 |5 U% k9 `/ Z1 [) b* J8 m
- // 发送请求3 t9 F9 u! R: y* u0 E {1 C
- doGet("http://google.cn");0 K2 \ P6 F( }$ t+ C
- }4 u, G1 z9 `$ u8 i" [# f7 J6 o/ b9 N
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