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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)2 R% f) R$ F$ L4 l
- #include <ESP8266HTTPClient.h>4 u% t- @1 x% p& s+ t7 o
- #include <ESP8266WiFi.h>
: N1 k1 p) u* F1 X* `4 s - #include <ESP8266WiFiMulti.h>
2 v6 `0 _1 O6 [* X! ` - #include <ESP8266WebServer.h>( J& i4 z7 _9 _' b# Q2 P0 k5 T1 c
- #include <arduino.h>) ~; J' q$ [+ V) H& L* U8 \
- ESP8266WiFiMulti WiFiMulti;
9 q$ g& H; ~/ h* _$ {2 R6 w - ESP8266WebServer server(80);3 z, M6 f- S) P- D0 Y& P9 [
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. v, ~1 ]' T0 Y- I# F - ADC_MODE(ADC_VCC);# i& F# }. v( H
- void setup() {
& Z8 @. |# u, Q! `1 C5 [: C6 a - Serial.begin(115200);5 ?2 X# t* y& w$ D9 \% B
- Serial.print("\r\n\n");
: H# u1 ?+ L$ ^ M' \ - pinMode(2,OUTPUT);3 g$ L) P% [! t
- // WIFI
. L: {2 ~& [! v! X) M - WiFi.mode(WIFI_STA);
) {6 v6 a0 A) D* h; ` c/ X' O - WiFi.hostname("Sparkle");
9 |4 B: N" B! y3 h! l* e) G* {' d# C - WiFiMulti.addAP("wifi ssid", "wifi password");7 x; P4 ]3 {! J! }
- int tryNum = 15;8 t. q/ m- T/ f. w: X4 Q! U6 i; \
- Serial.print("Connect WiFi");4 p+ E' y# b0 }4 e9 t$ }
- while (WiFiMulti.run() != WL_CONNECTED) {
. i$ Q2 P X5 E0 S - digitalWrite(2,0);# j \* V; c2 z `8 c: N% Y
- delay(200);0 o0 L6 ]+ Z5 [3 q) Z$ ?
- digitalWrite(2,1);: M2 P2 {7 p2 V1 a1 R* b
- delay(300);0 z/ h- `6 d' z! X
- Serial.print(".");
: Q, R5 Y+ O& E! M9 F" m7 {; T5 y3 u - tryNum--;
' _: |- }2 A) d; T - if (tryNum == 0) {
; R/ r( ^; t( z" \% `/ d - // 1min
$ D" m% H0 f: x' y - // ESP.deepSleep(60e6);! N8 t5 W: O5 Q; @- B
- ESP.deepSleep(0);
o6 G& n$ b4 z3 M4 k3 B - }
* p9 `. b( H+ d- k4 ]( J5 J: U- u1 { - }( ~! t2 F" }% K, U% C5 Y0 F3 Y
- Serial.print("\r\n");
: E2 C; z" c7 G - digitalWrite(2,1);
0 V$ u0 w1 i2 N0 x% i2 _$ h - Serial.print("IP address : ");- m S. _3 M+ K X7 N3 j
- Serial.println(WiFi.localIP());. A' `8 u, T/ I: W8 O
- server.on("/", HTTP_GET, [](){
?# k! [" A2 M1 L( I4 J" w3 `( ~ - server.sendHeader("Connection", "close");! _5 M4 s! W; `8 N$ _& G3 _
- server.send(200, "text/html", serverIndex);6 p3 i7 k1 M" E8 B' C/ a0 q
- });* {5 u& {5 k0 a$ D( v' a- I. |
- server.on("/update", HTTP_POST, [](){. n" b5 {4 ?& j: e. C( W
- server.sendHeader("Connection", "close");, |6 w0 E5 l+ \: @4 X; ^! Z) ], k5 G
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 B" `) T! o- ^' f ^% \
- ESP.restart();. V. B8 X& F) Y( ^4 @2 a! b4 r) E
- },[](){* E5 ?. d8 d6 ]* y
- HTTPUpload& upload = server.upload();( V) e1 W. N& H: _& p& g
- if(upload.status == UPLOAD_FILE_START){
' X- x2 C' f+ Y$ l - Serial.setDebugOutput(true);
1 }% }$ J7 [$ X6 } - Serial.printf("Update: %s\n", upload.filename.c_str());
+ {# |: J1 O- S! A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( m. F# G+ y2 [7 H - if(!Update.begin(maxSketchSpace)){
" d4 B7 t+ V) s% U7 a - Update.printError(Serial);1 }. I0 q3 B" z5 Z4 ]$ e. O' [
- }9 Q7 r9 ^3 j7 H9 d' i' V, \* i
- } else if(upload.status == UPLOAD_FILE_WRITE){4 ~4 c6 Z$ k! Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 b) C ]# K. X - Update.printError(Serial);
# |% l( R6 u, B& {6 C1 b4 b - }, k: O8 g8 Q0 }9 }" X) K6 w# X
- } else if(upload.status == UPLOAD_FILE_END){- h! @' ^, G& J6 r
- if(Update.end(true)){
. m# i* h! y+ j" C/ W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* B) _2 @. h, _# ]. B4 g" ]! y. [ - } else {
f* Y# j0 Q4 D' e/ |4 n - Update.printError(Serial);" l G u$ K+ ^6 b0 B' R6 j
- }
! X/ b5 y, Y, f3 t6 s5 b' W" C - Serial.setDebugOutput(false);
$ O0 m2 m* n2 ^; q, A& e - }3 n H5 P) Z3 P: ]; s; z5 Z) P* C
- yield();; Y5 z; j/ p1 i
- });( ~" I1 o3 w G$ \- X
-
) D$ X# c* k( n+ p- d. F2 a - digitalWrite(2,0);/ D S6 v4 G8 N* y" L( @
- mainAction();
5 o' c* Q- ]: ` - if (digitalRead(0)){
8 L# c$ Z7 y+ y - ESP.deepSleep(0);. V' O# ^" K9 H7 z3 j
- } else {+ e0 V4 q) l9 [, V5 S# H
- server.begin();
! m7 ?* k, A0 w1 G - }
. b, w& b+ G- I% D - }
* g- X1 B, e( ]- d4 n! s# ] - void loop() {7 r# N% E; d; m2 N7 O
- server.handleClient();8 U+ I3 {+ N; t5 o
- delay(1);- c* X6 [+ G$ ?% p$ y
- }2 U6 }, k* L# Z! m: N
- String doGet(String url){
; I1 w1 U& `0 H9 [7 L3 m# x - if ((WiFiMulti.run() == WL_CONNECTED)) {
) v- ]% T# L' ]' s - HTTPClient http;1 q- z: W$ f5 o3 h- J: u0 \
- Serial.println("[HTTP] begin...");
7 A* v; `- l( ~ - if (url.startsWith("https")) {
6 H6 M/ Q+ G8 C+ O$ @: S5 t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' B+ J/ ?2 M, |7 P
- } else {4 X* P& H$ m! Q# l g
- http.begin(url);2 ?0 b4 m5 T9 S5 w/ u8 g) o" l
- }7 r3 ?* b+ D% W8 G) [9 F
- Serial.println("[HTTP] GET...");# \4 g- T& _6 p5 {# g% v3 U; x
- int httpCode = http.GET();
$ y! n- F% ]8 P2 G/ Y1 S& g - if (httpCode > 0) {! P/ z6 K0 k% C; n6 {
- Serial.printf("[HTTP] code: %d\n", httpCode);- G0 i$ d! s; ]6 `1 a
- if (httpCode == HTTP_CODE_OK) {
# e, y' F' K' J$ H - String payload = http.getString();9 z2 V0 M* p' `* A" o* K6 ]
- Serial.println(payload);$ G2 a# h/ {& o/ K+ z2 q* M- D& `7 h
- Serial.print("\r\n");
' Z6 m6 `4 p F( M0 S. k - return payload;
2 w9 g L9 ?* e: w1 W - }
, _9 X1 n) }# N& o1 f" j: F - } else {
! c6 n2 F* ^+ p, J/ T8 M* B - Serial.printf("[HTTP] GET... failed, error: %s\n",* I: u% ?: \+ S8 c- t& c
- http.errorToString(httpCode).c_str());
: X. y, f& q- A, Y - }& V1 n; S9 k, W
- http.end();
* I* }( P) D) ?4 y - return "";
( @# ?6 R1 A% m d6 V# r - }
/ f+ h' g( ]/ G; q( L - }7 S+ Q8 K! `+ X+ y0 T; B
- void mainAction() {
$ M9 k0 t- }9 o - // 发送请求
" }6 {2 h. C3 [9 Q' `" f3 o - doGet("http://google.cn");- D" n7 A+ |; {1 L
- }) Q6 H8 K$ J/ ]2 q7 R) e5 M: U
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